Elbio Dagotto: Difference between revisions
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| workplaces = [[University of Tennessee system|University of Tennessee, Knoxville]]<br>[[Oak Ridge National Laboratory]] |
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'''Elbio Rubén Dagotto''' is an [[Argentine-American|Argentinian-American]] [[Theoretical physicist|theoretical physicist]] and academic. He is a Distinguished Professor in the Department of Physics and Astronomy at the [[University of Tennessee system|University of Tennessee, Knoxville]], and Distinguished Scientist in the Materials Science and Technology Division at the [[Oak Ridge National Laboratory]].<ref name=wee>{{ |
'''Elbio Rubén Dagotto''' is an [[Argentine-American|Argentinian-American]] [[Theoretical physicist|theoretical physicist]] and academic. He is a Distinguished Professor in the Department of Physics and Astronomy at the [[University of Tennessee system|University of Tennessee, Knoxville]], and Distinguished Scientist in the Materials Science and Technology Division at the [[Oak Ridge National Laboratory]].<ref name=wee>{{Cite web|url=https://www.ornl.gov/staff-profile/elbio-r-dagotto|title=Elbio R Dagotto | ORNL|website=www.ornl.gov}}</ref> |
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Dagotto is most known for using theoretical models and computational techniques to explore [[transition metal]] [[oxide]]s, oxide interfaces, [[High-temperature superconductivity|high-temperature superconductors]], topological materials, quantum magnets, and nanoscale systems.<ref name=rfv>{{ |
Dagotto is most known for using theoretical models and computational techniques to explore [[transition metal]] [[oxide]]s, oxide interfaces, [[High-temperature superconductivity|high-temperature superconductors]], topological materials, quantum magnets, and nanoscale systems.<ref name=rfv>{{Cite web|url=https://quantummaterials.utk.edu/affiliates-elbio-dagotto/|title=Affiliates – Elbio Dagotto | Tennessee Quantum Center}}</ref> He authored the book, ''Nanoscale Phase Separation and Colossal Magnetoresistance'' which has focused on transition metal oxides, particularly [[manganese oxide]]s with the [[Colossal magnetoresistance|colossal magneto-resistance]] effect and co-edited the book, ''Multifunctional Oxide Heterostructures''.<ref name=dkl>{{Cite web|url=http://www.phys.utk.edu/news/2022/elbio-dagotto-receives-aps-adler-award-in-materials-physics.html|title=Department of Physics and Astronomy | The University of Tennessee, Knoxville|website=www.phys.utk.edu}}</ref> |
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Dagotto held appointments as a Member of the Solid State Sciences Committee at the [[National Academy of Sciences]] and as a Divisional Editor for ''[[Physical Review Letters]]''. He is a Fellow of both the [[American Association for the Advancement of Science]] (AAAS)<ref name=zzz>{{ |
Dagotto held appointments as a Member of the Solid State Sciences Committee at the [[National Academy of Sciences]] and as a Divisional Editor for ''[[Physical Review Letters]]''. He is a Fellow of both the [[American Association for the Advancement of Science]] (AAAS)<ref name=zzz>{{Cite web|url=https://www.aaas.org/fellows/listing|title=Elected Fellows | American Association for the Advancement of Science (AAAS)|website=www.aaas.org}}</ref> and the [[American Physical Society]] (APS),<ref name=rrrr>{{Cite web|url=http://www.aps.org/programs/honors/fellowships/archive-all.cfm|title=APS Fellow Archive|website=www.aps.org}}</ref> and has also been recognized as an Outstanding Referee by the APS<ref name=www>{{Cite web|url=https://journals.aps.org/OutstandingReferees|title=Physical Review Journals - Outstanding Referees|website=journals.aps.org}}</ref> and [[EPL (journal)|Europhysics Letters]] (EPL).<ref name=qqq>{{Cite web|url=https://www.epletters.net/distinguished-referees/|title=Distinguished referees}}</ref> Furthermore, he is the recipient of the 2023 [[David Adler Lectureship Award in the Field of Materials Physics]]<ref name=jam >{{Cite web|url=http://www.aps.org/programs/honors/prizes/prizerecipient.cfm|title=Prize Recipient|website=www.aps.org}}</ref> and recipient of the 2023 Alexander Prize of the University of Tennessee.<ref name=qpl>{{Cite web|url=https://honorsbanquet.utk.edu/2023-alexander-prize/|title=2023 Alexander Prize | Honors Banquets|website=honorsbanquet.utk.edu}}</ref> |
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==Education and career== |
==Education and career== |
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Dagotto studied physics at the [[Balseiro Institute|Institute Balseiro]], [[Bariloche Atomic Centre]], [[Bariloche]], [[Argentina]], where he received the title of [[Licentiate (degree)|Licenciado]]. Continuing in the Centro Atomico Bariloche, he received his PhD in the field of High Energy Physics, specifically in [[Lattice gauge theory|lattice gauge theories]], under the supervision of Luis Masperi.<ref name=wee/> He then moved as Postdoctoral Researcher to the Department of Physics, [[University of Illinois at Urbana-Champaign]] under the supervision of [[Eduardo Fradkin]] and [[John Kogut]]. His second postdoctoral appointment was at the [[Kavli Institute for Theoretical Physics]], at the [[University of California, Santa Barbara]], where he collaborated with [[Douglas James Scalapino]], [[John Robert Schrieffer]] and Robert Sugar.<ref>{{ |
Dagotto studied physics at the [[Balseiro Institute|Institute Balseiro]], [[Bariloche Atomic Centre]], [[Bariloche]], [[Argentina]], where he received the title of [[Licentiate (degree)|Licenciado]]. Continuing in the Centro Atomico Bariloche, he received his PhD in the field of High Energy Physics, specifically in [[Lattice gauge theory|lattice gauge theories]], under the supervision of Luis Masperi.<ref name=wee/> He then moved as Postdoctoral Researcher to the Department of Physics, [[University of Illinois at Urbana-Champaign]] under the supervision of [[Eduardo Fradkin]] and [[John Kogut]]. His second postdoctoral appointment was at the [[Kavli Institute for Theoretical Physics]], at the [[University of California, Santa Barbara]], where he collaborated with [[Douglas James Scalapino]], [[John Robert Schrieffer]] and Robert Sugar.<ref>{{Cite web|url=https://www.physics.ucsb.edu/people/robert-sugar|title=Robert Sugar | Department of Physics - UC Santa Barbara|website=www.physics.ucsb.edu}}</ref><ref name=rfv/> |
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Dagotto became Assistant, Associate and then Full Professor at the Department of Physics, [[Florida State University]]. There, he was associated with the [[National High Magnetic Field Laboratory]], working in the theory group. He works in a Correlated Electron Group with Adriana Moreo,<ref>{{ |
Dagotto became Assistant, Associate and then Full Professor at the Department of Physics, [[Florida State University]]. There, he was associated with the [[National High Magnetic Field Laboratory]], working in the theory group. He works in a Correlated Electron Group with Adriana Moreo,<ref>{{Cite web|url=http://sces.phys.utk.edu/|title=Dagotto Group Homepage|website=sces.phys.utk.edu}}</ref> and has had a joint appointment between the University of Tennessee (UT), Knoxville, and Oak Ridge National Laboratory (ORNL) since 2004.<ref name=dkl/> |
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==Research== |
==Research== |
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Dagotto’s research has primarily focused on [[Strongly correlated material|strongly correlated electronic materials]], and lately in [[quantum materials]], where correlation and topological effects are intertwined. In the presence of strong correlation, the interactions between electrons play a crucial role and the [[Independent electron approximation|one-electron approximation]], used for example in semiconductors, is no longer valid. In this framework, he has worked on theories for many families of materials, such as [[High-temperature superconductivity|high critical temperature superconductors]] and manganese oxides with the [[colossal magnetoresistance]]. The overarching theme of his work is that correlated electrons must be considered in the broader context of complexity.<ref>{{ |
Dagotto’s research has primarily focused on [[Strongly correlated material|strongly correlated electronic materials]], and lately in [[quantum materials]], where correlation and topological effects are intertwined. In the presence of strong correlation, the interactions between electrons play a crucial role and the [[Independent electron approximation|one-electron approximation]], used for example in semiconductors, is no longer valid. In this framework, he has worked on theories for many families of materials, such as [[High-temperature superconductivity|high critical temperature superconductors]] and manganese oxides with the [[colossal magnetoresistance]]. The overarching theme of his work is that correlated electrons must be considered in the broader context of complexity.<ref name="auto1">{{Cite journal|url=https://www.science.org/doi/10.1126/science.1107559|title=Complexity in Strongly Correlated Electronic Systems|first=Elbio|last=Dagotto|date=July 8, 2005|journal=Science|volume=309|issue=5732|pages=257–262|via=CrossRef|doi=10.1126/science.1107559}}</ref> As described by [[Philip W. Anderson]] in his publication, “More Is Different” <ref>{{Cite journal|url=https://www.science.org/doi/10.1126/science.177.4047.393|title=More Is Different: Broken symmetry and the nature of the hierarchical structure of science.|first=P. W.|last=Anderson|date=August 4, 1972|journal=Science|volume=177|issue=4047|pages=393–396|via=CrossRef|doi=10.1126/science.177.4047.393}}</ref> having simple fundamental interactions among particles does not imply the ability to reconstruct their collective properties. Dagotto argued that in correlated electronic systems, similar [[emergence]] occurs, and these complex systems spontaneously form complicated states and self-organize in patterns impossible to predict by mere inspection of the simple electron-electron interactions involved. Because of its intrinsic difficulty, to study complexity and emergence in quantum materials the use of computational techniques is crucial. He has employed [[Monte Carlo method|Monte Carlo]], [[density matrix renormalization group]], and [[Lanczos algorithm|Lanczos]] methods.<ref name="auto">{{Cite journal|url=https://link.aps.org/doi/10.1103/RevModPhys.66.763|title=Correlated electrons in high-temperature superconductors|first=Elbio|last=Dagotto|date=July 1, 1994|journal=Reviews of Modern Physics|volume=66|issue=3|pages=763–840|via=APS|doi=10.1103/RevModPhys.66.763}}</ref> Together with collaborators, he also developed new algorithms to study systems described by spin-fermion models, with a mixture of quantum and classical degrees of freedom, such as in the [[Double-exchange mechanism|double exchange]] context used for materials in the central part of the ''3d'' row of the periodic table.<ref>{{Cite journal|url=https://www.sciencedirect.com/science/article/pii/S0370157300001216|title=Colossal magnetoresistant materials: the key role of phase separation|first1=Elbio|last1=Dagotto|first2=Takashi|last2=Hotta|first3=Adriana|last3=Moreo|date=April 1, 2001|journal=Physics Reports|volume=344|issue=1|pages=1–153|via=ScienceDirect|doi=10.1016/S0370-1573(00)00121-6}}</ref> |
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==Scientific work== |
==Scientific work== |
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In 1992, Dagotto, in collaboration with José Riera and Doug Scalapino, opened the field of ladder compounds,<ref>{{ |
In 1992, Dagotto, in collaboration with José Riera and Doug Scalapino, opened the field of ladder compounds,<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevB.45.5744|title=Superconductivity in ladders and coupled planes|first1=E.|last1=Dagotto|first2=J.|last2=Riera|first3=D.|last3=Scalapino|date=March 1, 1992|journal=Physical Review B|volume=45|issue=10|pages=5744–5747|via=APS|doi=10.1103/PhysRevB.45.5744}}</ref> materials with atomic substructures containing two chains next to each other and with inter-ladder coupling (along rungs) of magnitude comparable to that in the long direction (along legs). This research was the first to demonstrate that the transition from one chain to a full two-dimensional plane was not a smooth process simply involving the addition of one chain to another. Instead, it was revealed that even and odd number of chains (called legs due to its ladder-like geometry) belong to classes with quite different behavior.<ref>{{Cite journal|url=https://www.science.org/doi/10.1126/science.271.5249.618|title=Surprises on the Way from One- to Two-Dimensional Quantum Magnets: The Ladder Materials|first1=Elbio|last1=Dagotto|first2=T. M.|last2=Rice|date=February 2, 1996|journal=Science|volume=271|issue=5249|pages=618–623|via=CrossRef|doi=10.1126/science.271.5249.618}}</ref> The even-leg ladders, with two legs being the most dramatic case, were theoretically predicted by Dagotto to display a spin gap, spin liquid properties, and tendencies toward superconductivity upon hole doping, all properties confirmed experimentally in materials of the family of copper-based high critical superconductors.<ref>{{Cite journal|url=https://iopscience.iop.org/article/10.1088/0034-4885/62/11/202|title=Experiments on ladders reveal a complex interplay between a spin-gapped normal state and superconductivity|first=Elbio|last=Dagotto|date=November 1, 1999|journal=Reports on Progress in Physics|volume=62|issue=11|pages=1525–1571|via=CrossRef|doi=10.1088/0034-4885/62/11/202}}</ref> Even in the more recently discovered [[Iron-based superconductor|iron-based high critical temperature superconductor]], the "123" materials such as BaFe2S3 with ladder geometry also display superconductivity under high pressure.<ref>{{Cite journal|url=https://www.nature.com/articles/nmat4351|title=Pressure-induced superconductivity in the iron-based ladder material BaFe2S3|first1=Hiroki|last1=Takahashi|first2=Akira|last2=Sugimoto|first3=Yusuke|last3=Nambu|first4=Touru|last4=Yamauchi|first5=Yasuyuki|last5=Hirata|first6=Takateru|last6=Kawakami|first7=Maxim|last7=Avdeev|first8=Kazuyuki|last8=Matsubayashi|first9=Fei|last9=Du|first10=Chizuru|last10=Kawashima|first11=Hideto|last11=Soeda|first12=Satoshi|last12=Nakano|first13=Yoshiya|last13=Uwatoko|first14=Yutaka|last14=Ueda|first15=Taku J.|last15=Sato|first16=Kenya|last16=Ohgushi|date=October 23, 2015|journal=Nature Materials|volume=14|issue=10|pages=1008–1012|via=www.nature.com|doi=10.1038/nmat4351}}</ref> |
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Dagotto employed computational techniques to study model Hamiltonians for high critical temperature superconductors based on copper,<ref name=ert>{{ |
Dagotto employed computational techniques to study model Hamiltonians for high critical temperature superconductors based on copper,<ref name=ert>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.98.127202|title=Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: The Origin of the Colossal Magnetoresistance Effect|first1=Cengiz|last1=Şen|first2=Gonzalo|last2=Alvarez|first3=Elbio|last3=Dagotto|date=March 21, 2007|journal=Physical Review Letters|volume=98|issue=12|pages=127202|via=APS|doi=10.1103/PhysRevLett.98.127202}}</ref> thus reducing the uncertainty in the analysis of these models when employing other approximations, such as mean field or variational methods. In 1990, he along with research collaborators, and other groups independently, realized that the dominant attractive channel for Cooper pairs of holes in an antiferromagnetic background is the d<sub>x2-y2</sub> channel.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.86.4922|title=Stripes Induced by Orbital Ordering in Layered Manganites|first1=Takashi|last1=Hotta|first2=Adrian|last2=Feiguin|first3=Elbio|last3=Dagotto|date=May 21, 2001|journal=Physical Review Letters|volume=86|issue=21|pages=4922–4925|via=APS|doi=10.1103/PhysRevLett.86.4922}}</ref> In 1990, he studied dynamical properties of the [[Hubbard model]] and [[t-J model]] computationally, addressing photoemission dispersions and quasiparticle weights.<ref name=ert/><ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.111.047004|title=Nematic State of Pnictides Stabilized by Interplay between Spin, Orbital, and Lattice Degrees of Freedom|first1=Shuhua|last1=Liang|first2=Adriana|last2=Moreo|first3=Elbio|last3=Dagotto|date=July 24, 2013|journal=Physical Review Letters|volume=111|issue=4|pages=047004|via=APS|doi=10.1103/PhysRevLett.111.047004}}</ref> |
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In 1998, Dagotto developed the Monte Carlo techniques that allowed for the first computational studies of spin-fermion models for manganites, in collaboration with Seiji Yunoki and Adriana Moreo. Employing these techniques, [[phase separation]] involving electronic degrees of freedom, dubbed "electronic phase separation" was discovered.<ref |
In 1998, Dagotto developed the Monte Carlo techniques that allowed for the first computational studies of spin-fermion models for manganites, in collaboration with Seiji Yunoki and Adriana Moreo. Employing these techniques, [[phase separation]] involving electronic degrees of freedom, dubbed "electronic phase separation" was discovered.<ref name="auto"/> The computational techniques developed by him and research collaborators unveiled the strong competition between a ferromagnetic metallic state and complex charge-orbital-spin ordered insulating states, providing the explanation for the colossal magnetoresistance effect in manganites.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevB.42.2347|title=Dynamical pair susceptibilities in the t-J and Hubbard models|first1=Elbio|last1=Dagotto|first2=Jose|last2=Riera|first3=A. P.|last3=Young|date=August 1, 1990|journal=Physical Review B|volume=42|issue=4|pages=2347–2352|via=APS|doi=10.1103/PhysRevB.42.2347}}</ref><ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.88.117002|title=Superconductivity in the Two-Dimensional $\mathit{t}\ensuremath{-}\mathit{J}$ Model|first1=S.|last1=Sorella|first2=G. B.|last2=Martins|first3=F.|last3=Becca|first4=C.|last4=Gazza|first5=L.|last5=Capriotti|first6=A.|last6=Parola|first7=E.|last7=Dagotto|date=February 28, 2002|journal=Physical Review Letters|volume=88|issue=11|pages=117002|via=APS|doi=10.1103/PhysRevLett.88.117002}}</ref> More recently, similar Monte Carlo techniques have been employed by him and collaborators to study properties of iron-based superconductors, revealing the role of the lattice to stabilize the electronic nematic regime above the antiferromagnetic critical temperature.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.87.277202|title=Colossal Effects in Transition Metal Oxides Caused by Intrinsic Inhomogeneities|first1=J.|last1=Burgy|first2=M.|last2=Mayr|first3=V.|last3=Martin-Mayor|first4=A.|last4=Moreo|first5=E.|last5=Dagotto|date=December 13, 2001|journal=Physical Review Letters|volume=87|issue=27|pages=277202|via=APS|doi=10.1103/PhysRevLett.87.277202}}</ref> |
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In a highly cited 2005 publication, Dagotto argued that the electronic degree of freedom in transition metal oxides and related materials displays characteristics similar to those of [[soft matter]], where complex patterns arise from deceptively simple interactions.<ref |
In a highly cited 2005 publication, Dagotto argued that the electronic degree of freedom in transition metal oxides and related materials displays characteristics similar to those of [[soft matter]], where complex patterns arise from deceptively simple interactions.<ref name="auto1"/> |
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In 2006, Dagotto and Ivan Sergienko developed a theory to understand the [[Multiferroics|multiferroic]] properties of narrow bandwidth perovskites and other oxides. Their spin arrangements break inversion symmetry, and this triggers ferroelectric properties, leading to multiferroics, which are materials with both magnetic and ferroelectric properties.<ref>{{ |
In 2006, Dagotto and Ivan Sergienko developed a theory to understand the [[Multiferroics|multiferroic]] properties of narrow bandwidth perovskites and other oxides. Their spin arrangements break inversion symmetry, and this triggers ferroelectric properties, leading to multiferroics, which are materials with both magnetic and ferroelectric properties.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevB.73.094434|title=Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites|first1=I. A.|last1=Sergienko|first2=E.|last2=Dagotto|date=March 23, 2006|journal=Physical Review B|volume=73|issue=9|pages=094434|via=APS|doi=10.1103/PhysRevB.73.094434}}</ref> He, along with Ivan Sergienko, Cengiz Sen, [[Silvia Picozzi]] and collaborators also proposed magnetostriction as a mechanism for multiferroicity.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.97.227204|title=Ferroelectricity in the Magnetic $E$-Phase of Orthorhombic Perovskites|first1=Ivan A.|last1=Sergienko|first2=Cengiz|last2=Şen|first3=Elbio|last3=Dagotto|date=November 30, 2006|journal=Physical Review Letters|volume=97|issue=22|pages=227204|via=APS|doi=10.1103/PhysRevLett.97.227204}}</ref><ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.99.227201|title=Dual Nature of Improper Ferroelectricity in a Magnetoelectric Multiferroic|first1=S.|last1=Picozzi|first2=K.|last2=Yamauchi|first3=B.|last3=Sanyal|first4=I. A.|last4=Sergienko|first5=E.|last5=Dagotto|date=November 26, 2007|journal=Physical Review Letters|volume=99|issue=22|pages=227201|via=APS|doi=10.1103/PhysRevLett.99.227201}}</ref> |
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Dagotto made several other contributions to theoretical condensed matter physics. Together with [[Pengcheng Dai]] and Jiangping Hu, in 2012 they were among the first to argue that the iron based high critical temperature superconductors are not located in the weak Hubbard coupling limit. Instead they are in the intermediate Hubbard coupling regime, thus requiring a combination of localized and itinerant degrees of freedom.<ref>{{ |
Dagotto made several other contributions to theoretical condensed matter physics. Together with [[Pengcheng Dai]] and Jiangping Hu, in 2012 they were among the first to argue that the iron based high critical temperature superconductors are not located in the weak Hubbard coupling limit. Instead they are in the intermediate Hubbard coupling regime, thus requiring a combination of localized and itinerant degrees of freedom.<ref>{{Cite journal|url=https://www.nature.com/articles/nphys2438/|title=Magnetism and its microscopic origin in iron-based high-temperature superconductors|first1=Pengcheng|last1=Dai|first2=Jiangping|last2=Hu|first3=Elbio|last3=Dagotto|date=October 23, 2012|journal=Nature Physics|volume=8|issue=10|pages=709–718|via=www.nature.com|doi=10.1038/nphys2438}}</ref> In particular, iron selenides are an example of materials where electronic correlations and spin frustration cannot be ignored.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/RevModPhys.85.849|title=Colloquium: The unexpected properties of alkali metal iron selenide superconductors|first=Elbio|last=Dagotto|date=May 20, 2013|journal=Reviews of Modern Physics|volume=85|issue=2|pages=849–867|via=APS|doi=10.1103/RevModPhys.85.849}}</ref> With Julian Rincon, Jacek Herbrych and collaborators,<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.123.027203|title=Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors|first1=J.|last1=Herbrych|first2=J.|last2=Heverhagen|first3=N. D.|last3=Patel|first4=G.|last4=Alvarez|first5=M.|last5=Daghofer|first6=A.|last6=Moreo|first7=E.|last7=Dagotto|date=July 10, 2019|journal=Physical Review Letters|volume=123|issue=2|pages=027203|via=APS|doi=10.1103/PhysRevLett.123.027203}}</ref><ref>{{Cite journal|url=https://www.nature.com/articles/s42005-019-0155-3|title=Fingerprints of an orbital-selective Mott phase in the block magnetic state of BaFe2Se3 ladders|first1=N. D.|last1=Patel|first2=A.|last2=Nocera|first3=G.|last3=Alvarez|first4=A.|last4=Moreo|first5=S.|last5=Johnston|first6=E.|last6=Dagotto|date=June 21, 2019|journal=Communications Physics|volume=2|issue=1|pages=1–8|via=www.nature.com|doi=10.1038/s42005-019-0155-3}}</ref> employing the density matrix renormalization group, they computationally discovered “block” states in low-dimensional multi-orbital Hubbard models. Spin blocks are groups of spin that are aligned ferromagnetically, anti-ferro coupled among them, and they display exotic dynamical spin structure factors with a mixture of spin waves and optical modes.<ref>{{Cite journal|url=https://www.nature.com/articles/s41467-018-06181-6/|title=Spin dynamics of the block orbital-selective Mott phase|first1=J.|last1=Herbrych|first2=N.|last2=Kaushal|first3=A.|last3=Nocera|first4=G.|last4=Alvarez|first5=A.|last5=Moreo|first6=E.|last6=Dagotto|date=September 13, 2018|journal=Nature Communications|volume=9|issue=1|pages=3736|via=www.nature.com|doi=10.1038/s41467-018-06181-6}}</ref> |
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Among the related findings, Herbrych, Dagotto and collaborators revealed the existence of a spin spiral made out of blocks, a state never reported before.<ref>{{ |
Among the related findings, Herbrych, Dagotto and collaborators revealed the existence of a spin spiral made out of blocks, a state never reported before.<ref>{{Cite journal|url=https://pnas.org/doi/full/10.1073/pnas.2001141117|title=Block–spiral magnetism: An exotic type of frustrated order|first1=J.|last1=Herbrych|first2=J.|last2=Heverhagen|first3=G.|last3=Alvarez|first4=M.|last4=Daghofer|first5=A.|last5=Moreo|first6=E.|last6=Dagotto|date=July 14, 2020|journal=Proceedings of the National Academy of Sciences|volume=117|issue=28|pages=16226–16233|via=CrossRef|doi=10.1073/pnas.2001141117|pmid=32601231|pmc=PMC7368323}}</ref> When this spiral one-dimensional state is placed over a two-dimensional superconducting plane, [[Majorana fermion]]s developed at the chain by proximity effect from the plane,<ref>{{Cite journal|url=https://www.nature.com/articles/s41467-021-23261-2|title=Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators|first1=J.|last1=Herbrych|first2=M.|last2=Środa|first3=G.|last3=Alvarez|first4=M.|last4=Mierzejewski|first5=E.|last5=Dagotto|date=May 19, 2021|journal=Nature Communications|volume=12|issue=1|pages=2955|via=www.nature.com|doi=10.1038/s41467-021-23261-2}}</ref> and for this reason this chain-plane geometry has potential value in [[Topological quantum computer|topological quantum computing]]. He, together with Narayan Mohanta and Satoshi Okamoto, also reported Majoranas in a two-dimensional three-layer geometry with a skyrmion crystal at the bottom, an electron gas in the middle, and a standard superconductor at the top with a carved one-dimensional channel.<ref>{{Cite journal|url=https://www.nature.com/articles/s42005-021-00666-5|title=Skyrmion control of Majorana states in planar Josephson junctions|first1=Narayan|last1=Mohanta|first2=Satoshi|last2=Okamoto|first3=Elbio|last3=Dagotto|date=July 15, 2021|journal=Communications Physics|volume=4|issue=1|pages=1–8|via=www.nature.com|doi=10.1038/s42005-021-00666-5}}</ref> Within topology in one dimension, he, Nirav Patel, and collaborators proposed a fermionic two-orbital electronic model that becomes the S=1 Haldane chain in strong Hubbard coupling,<ref name=qaz>{{Cite journal|url=https://www.nature.com/articles/s41535-020-0228-2|title=Emergence of superconductivity in doped multiorbital Hubbard chains|first1=Niravkumar D.|last1=Patel|first2=Nitin|last2=Kaushal|first3=Alberto|last3=Nocera|first4=Gonzalo|last4=Alvarez|first5=Elbio|last5=Dagotto|date=May 8, 2020|journal=npj Quantum Materials|volume=5|issue=1|pages=1–9|via=www.nature.com|doi=10.1038/s41535-020-0228-2}}</ref> and has similarities with the [[AKLT model|AKLT state]] of spin systems. The proposed fermionic model has a spin gap and spin liquid properties, as the Haldane chain, and it is quite different from the S=1/2 Heisenberg chain. Moreover, he and collaborators predicted superconductivity upon hole doping, similarly as it occurs in ladders due to the existence of preformed spin ½ singlets in the ground state as in a [[Resonating valence bond theory|resonant valence bond state]].<ref name=qaz/> |
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Dagotto also contributed to theoretical aspects of oxide interfaces, where oxides are grown one over the other creating interfaces where reconstructions of the spin, charge, orbital, and lattice can occur.<ref>{{ |
Dagotto also contributed to theoretical aspects of oxide interfaces, where oxides are grown one over the other creating interfaces where reconstructions of the spin, charge, orbital, and lattice can occur.<ref>{{Cite journal|url=https://www.science.org/doi/10.1126/science.1151094|title=When Oxides Meet Face to Face|first=Elbio|last=Dagotto|date=November 16, 2007|journal=Science|volume=318|issue=5853|pages=1076–1077|via=CrossRef|doi=10.1126/science.1151094}}</ref><ref>{{Cite journal|url=https://www.nature.com/articles/469167a|title=The conducting face of an insulator|first=Elbio|last=Dagotto|date=January 23, 2011|journal=Nature|volume=469|issue=7329|pages=167–168|via=www.nature.com|doi=10.1038/469167a}}</ref> Together with Shuai Dong and collaborators, he showed that a superlattice made of insulating Mn-oxide components becomes globally metallic in the new geometry.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevB.78.201102|title=Magnetism, conductivity, and orbital order in ${({\text{LaMnO}}_{3})}_{2n}/{({\text{SrMnO}}_{3})}_{n}$ superlattices|first1=Shuai|last1=Dong|first2=Rong|last2=Yu|first3=Seiji|last3=Yunoki|first4=Gonzalo|last4=Alvarez|first5=J.-M.|last5=Liu|first6=Elbio|last6=Dagotto|date=November 21, 2008|journal=Physical Review B|volume=78|issue=20|pages=201102|via=APS|doi=10.1103/PhysRevB.78.201102}}</ref> He has also worked in skyrmions.<ref>{{Cite journal|url=https://www.nature.com/articles/s42005-020-00489-w|title=Signatures of a liquid-crystal transition in spin-wave excitations of skyrmions|first1=Narayan|last1=Mohanta|first2=Andrew D.|last2=Christianson|first3=Satoshi|last3=Okamoto|first4=Elbio|last4=Dagotto|date=December 11, 2020|journal=Communications Physics|volume=3|issue=1|pages=1–9|via=www.nature.com|doi=10.1038/s42005-020-00489-w}}</ref> In the early stages of his career, he made contributions: to particle physics<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.60.772|title=New phase of quantum electrodynamics: A nonperturbative fixed point in four dimensions|first1=J. B.|last1=Kogut|first2=Elbio|last2=Dagotto|first3=A.|last3=Kocic|date=February 29, 1988|journal=Physical Review Letters|volume=60|issue=9|pages=772–775|via=APS|doi=10.1103/PhysRevLett.60.772}}</ref> in the context of lattice gauge theories, to the interface between particle physics and condensed matter,<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.57.2967|title=Physical Realization of the Parity Anomaly in Condensed Matter Physics|first1=Eduardo|last1=Fradkin|first2=Elbio|last2=Dagotto|first3=Daniel|last3=Boyanovsky|date=December 8, 1986|journal=Physical Review Letters|volume=57|issue=23|pages=2967–2970|via=APS|doi=10.1103/PhysRevLett.57.2967}}</ref><ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevB.38.2926|title=SU(2) gauge invariance and order parameters in strongly coupled electronic systems|first1=Elbio|last1=Dagotto|first2=Eduardo|last2=Fradkin|first3=Adriana|last3=Moreo|date=August 1, 1988|journal=Physical Review B|volume=38|issue=4|pages=2926–2929|via=APS|doi=10.1103/PhysRevB.38.2926}}</ref> and to frustrated spin systems.<ref>{{Cite journal|url=https://link.aps.org/doi/10.1103/PhysRevLett.63.2148|title=Phase diagram of the frustrated spin-1/2 Heisenberg antiferromagnet in 2 dimensions|first1=Elbio|last1=Dagotto|first2=Adriana|last2=Moreo|date=November 6, 1989|journal=Physical Review Letters|volume=63|issue=19|pages=2148–2151|via=APS|doi=10.1103/PhysRevLett.63.2148}}</ref> |
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==Awards and honors== |
==Awards and honors== |
||
*1998 – Fellow, American Physical Society<ref name=rrrr/> |
*1998 – Fellow, American Physical Society<ref name=rrrr/> |
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*2006 – Member, Solid State Sciences Committee of the National Academy of Sciences <ref>{{ |
*2006 – Member, Solid State Sciences Committee of the National Academy of Sciences <ref>{{Cite book|url=https://www.ncbi.nlm.nih.gov/books/NBK214497/|title=Inspired by Biology: From Molecules to Materials to Machines|first=National Research Council (US) Committee on Biomolecular Materials and|last=Processes|date=May 23, 2008|publisher=National Academies Press (US)|via=www.ncbi.nlm.nih.gov}}</ref> |
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*2008 – Outstanding Referee, American Physical Society (APS)<ref name=www/> |
*2008 – Outstanding Referee, American Physical Society (APS)<ref name=www/> |
||
*2010 – Fellow, American Association for the Advancement of Science (AAAS)<ref name=zzz/> |
*2010 – Fellow, American Association for the Advancement of Science (AAAS)<ref name=zzz/> |
||
*2012 – Outstanding Referee, Europhysics Letters (EPL)<ref name=qqq/> |
*2012 – Outstanding Referee, Europhysics Letters (EPL)<ref name=qqq/> |
||
*2019, 2021, 2023 – Teacher of the year award, University of Tennessee<ref>{{ |
*2019, 2021, 2023 – Teacher of the year award, University of Tennessee<ref>{{Cite web|url=http://www.phys.utk.edu/alumni-friends/awardees-toty.html|title=Department of Physics and Astronomy | The University of Tennessee, Knoxville|website=www.phys.utk.edu}}</ref> |
||
*2023 – David Adler Lectureship Award in the Field of Materials Physics, American Physical Society<ref>{{ |
*2023 – David Adler Lectureship Award in the Field of Materials Physics, American Physical Society<ref>{{Cite web|url=http://www.aps.org/programs/honors/prizes/adler.cfm|title=David Adler Lectureship Award in the Field of Materials Physics|website=www.aps.org}}</ref> with citation “For pioneering work on the theoretical framework of correlated electron systems and describing their importance through elegant written and oral communications.“<ref name=jam/> |
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*2023 – Alexander Prize, University of Tennessee<ref name=qpl/> |
*2023 – Alexander Prize, University of Tennessee<ref name=qpl/> |
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Revision as of 07:05, 23 May 2023
Elbio Rubén Dagotto | |
---|---|
Nationality | Argentinian-American |
Occupation(s) | Theoretical physicist and academic |
Awards | David Adler Lectureship Award in the Field of Materials Physics, American Physical Society Alexander Prize, University of Tennessee |
Academic background | |
Bildung | Licenciado (equivalent to USA Master)., Physics PhD., High Energy Physics |
Alma mater | Institute Balseiro, Bariloche Atomic Centre |
Academic work | |
Institutions | University of Tennessee, Knoxville Oak Ridge National Laboratory |
Elbio Rubén Dagotto is an Argentinian-American theoretical physicist and academic. He is a Distinguished Professor in the Department of Physics and Astronomy at the University of Tennessee, Knoxville, and Distinguished Scientist in the Materials Science and Technology Division at the Oak Ridge National Laboratory.[1]
Dagotto is most known for using theoretical models and computational techniques to explore transition metal oxides, oxide interfaces, high-temperature superconductors, topological materials, quantum magnets, and nanoscale systems.[2] He authored the book, Nanoscale Phase Separation and Colossal Magnetoresistance which has focused on transition metal oxides, particularly manganese oxides with the colossal magneto-resistance effect and co-edited the book, Multifunctional Oxide Heterostructures.[3]
Dagotto held appointments as a Member of the Solid State Sciences Committee at the National Academy of Sciences and as a Divisional Editor for Physical Review Letters. He is a Fellow of both the American Association for the Advancement of Science (AAAS)[4] and the American Physical Society (APS),[5] and has also been recognized as an Outstanding Referee by the APS[6] and Europhysics Letters (EPL).[7] Furthermore, he is the recipient of the 2023 David Adler Lectureship Award in the Field of Materials Physics[8] and recipient of the 2023 Alexander Prize of the University of Tennessee.[9]
Education and career
Dagotto studied physics at the Institute Balseiro, Bariloche Atomic Centre, Bariloche, Argentina, where he received the title of Licenciado. Continuing in the Centro Atomico Bariloche, he received his PhD in the field of High Energy Physics, specifically in lattice gauge theories, under the supervision of Luis Masperi.[1] He then moved as Postdoctoral Researcher to the Department of Physics, University of Illinois at Urbana-Champaign under the supervision of Eduardo Fradkin and John Kogut. His second postdoctoral appointment was at the Kavli Institute for Theoretical Physics, at the University of California, Santa Barbara, where he collaborated with Douglas James Scalapino, John Robert Schrieffer and Robert Sugar.[10][2]
Dagotto became Assistant, Associate and then Full Professor at the Department of Physics, Florida State University. There, he was associated with the National High Magnetic Field Laboratory, working in the theory group. He works in a Correlated Electron Group with Adriana Moreo,[11] and has had a joint appointment between the University of Tennessee (UT), Knoxville, and Oak Ridge National Laboratory (ORNL) since 2004.[3]
Forschung
Dagotto’s research has primarily focused on strongly correlated electronic materials, and lately in quantum materials, where correlation and topological effects are intertwined. In the presence of strong correlation, the interactions between electrons play a crucial role and the one-electron approximation, used for example in semiconductors, is no longer valid. In this framework, he has worked on theories for many families of materials, such as high critical temperature superconductors and manganese oxides with the colossal magnetoresistance. The overarching theme of his work is that correlated electrons must be considered in the broader context of complexity.[12] As described by Philip W. Anderson in his publication, “More Is Different” [13] having simple fundamental interactions among particles does not imply the ability to reconstruct their collective properties. Dagotto argued that in correlated electronic systems, similar emergence occurs, and these complex systems spontaneously form complicated states and self-organize in patterns impossible to predict by mere inspection of the simple electron-electron interactions involved. Because of its intrinsic difficulty, to study complexity and emergence in quantum materials the use of computational techniques is crucial. He has employed Monte Carlo, density matrix renormalization group, and Lanczos methods.[14] Together with collaborators, he also developed new algorithms to study systems described by spin-fermion models, with a mixture of quantum and classical degrees of freedom, such as in the double exchange context used for materials in the central part of the 3d row of the periodic table.[15]
Scientific work
In 1992, Dagotto, in collaboration with José Riera and Doug Scalapino, opened the field of ladder compounds,[16] materials with atomic substructures containing two chains next to each other and with inter-ladder coupling (along rungs) of magnitude comparable to that in the long direction (along legs). This research was the first to demonstrate that the transition from one chain to a full two-dimensional plane was not a smooth process simply involving the addition of one chain to another. Instead, it was revealed that even and odd number of chains (called legs due to its ladder-like geometry) belong to classes with quite different behavior.[17] The even-leg ladders, with two legs being the most dramatic case, were theoretically predicted by Dagotto to display a spin gap, spin liquid properties, and tendencies toward superconductivity upon hole doping, all properties confirmed experimentally in materials of the family of copper-based high critical superconductors.[18] Even in the more recently discovered iron-based high critical temperature superconductor, the "123" materials such as BaFe2S3 with ladder geometry also display superconductivity under high pressure.[19]
Dagotto employed computational techniques to study model Hamiltonians for high critical temperature superconductors based on copper,[20] thus reducing the uncertainty in the analysis of these models when employing other approximations, such as mean field or variational methods. In 1990, he along with research collaborators, and other groups independently, realized that the dominant attractive channel for Cooper pairs of holes in an antiferromagnetic background is the dx2-y2 channel.[21] In 1990, he studied dynamical properties of the Hubbard model and t-J model computationally, addressing photoemission dispersions and quasiparticle weights.[20][22]
In 1998, Dagotto developed the Monte Carlo techniques that allowed for the first computational studies of spin-fermion models for manganites, in collaboration with Seiji Yunoki and Adriana Moreo. Employing these techniques, phase separation involving electronic degrees of freedom, dubbed "electronic phase separation" was discovered.[14] The computational techniques developed by him and research collaborators unveiled the strong competition between a ferromagnetic metallic state and complex charge-orbital-spin ordered insulating states, providing the explanation for the colossal magnetoresistance effect in manganites.[23][24] More recently, similar Monte Carlo techniques have been employed by him and collaborators to study properties of iron-based superconductors, revealing the role of the lattice to stabilize the electronic nematic regime above the antiferromagnetic critical temperature.[25]
In a highly cited 2005 publication, Dagotto argued that the electronic degree of freedom in transition metal oxides and related materials displays characteristics similar to those of soft matter, where complex patterns arise from deceptively simple interactions.[12]
In 2006, Dagotto and Ivan Sergienko developed a theory to understand the multiferroic properties of narrow bandwidth perovskites and other oxides. Their spin arrangements break inversion symmetry, and this triggers ferroelectric properties, leading to multiferroics, which are materials with both magnetic and ferroelectric properties.[26] He, along with Ivan Sergienko, Cengiz Sen, Silvia Picozzi and collaborators also proposed magnetostriction as a mechanism for multiferroicity.[27][28]
Dagotto made several other contributions to theoretical condensed matter physics. Together with Pengcheng Dai and Jiangping Hu, in 2012 they were among the first to argue that the iron based high critical temperature superconductors are not located in the weak Hubbard coupling limit. Instead they are in the intermediate Hubbard coupling regime, thus requiring a combination of localized and itinerant degrees of freedom.[29] In particular, iron selenides are an example of materials where electronic correlations and spin frustration cannot be ignored.[30] With Julian Rincon, Jacek Herbrych and collaborators,[31][32] employing the density matrix renormalization group, they computationally discovered “block” states in low-dimensional multi-orbital Hubbard models. Spin blocks are groups of spin that are aligned ferromagnetically, anti-ferro coupled among them, and they display exotic dynamical spin structure factors with a mixture of spin waves and optical modes.[33]
Among the related findings, Herbrych, Dagotto and collaborators revealed the existence of a spin spiral made out of blocks, a state never reported before.[34] When this spiral one-dimensional state is placed over a two-dimensional superconducting plane, Majorana fermions developed at the chain by proximity effect from the plane,[35] and for this reason this chain-plane geometry has potential value in topological quantum computing. He, together with Narayan Mohanta and Satoshi Okamoto, also reported Majoranas in a two-dimensional three-layer geometry with a skyrmion crystal at the bottom, an electron gas in the middle, and a standard superconductor at the top with a carved one-dimensional channel.[36] Within topology in one dimension, he, Nirav Patel, and collaborators proposed a fermionic two-orbital electronic model that becomes the S=1 Haldane chain in strong Hubbard coupling,[37] and has similarities with the AKLT state of spin systems. The proposed fermionic model has a spin gap and spin liquid properties, as the Haldane chain, and it is quite different from the S=1/2 Heisenberg chain. Moreover, he and collaborators predicted superconductivity upon hole doping, similarly as it occurs in ladders due to the existence of preformed spin ½ singlets in the ground state as in a resonant valence bond state.[37]
Dagotto also contributed to theoretical aspects of oxide interfaces, where oxides are grown one over the other creating interfaces where reconstructions of the spin, charge, orbital, and lattice can occur.[38][39] Together with Shuai Dong and collaborators, he showed that a superlattice made of insulating Mn-oxide components becomes globally metallic in the new geometry.[40] He has also worked in skyrmions.[41] In the early stages of his career, he made contributions: to particle physics[42] in the context of lattice gauge theories, to the interface between particle physics and condensed matter,[43][44] and to frustrated spin systems.[45]
Awards and honors
- 1998 – Fellow, American Physical Society[5]
- 2006 – Member, Solid State Sciences Committee of the National Academy of Sciences [46]
- 2008 – Outstanding Referee, American Physical Society (APS)[6]
- 2010 – Fellow, American Association for the Advancement of Science (AAAS)[4]
- 2012 – Outstanding Referee, Europhysics Letters (EPL)[7]
- 2019, 2021, 2023 – Teacher of the year award, University of Tennessee[47]
- 2023 – David Adler Lectureship Award in the Field of Materials Physics, American Physical Society[48] with citation “For pioneering work on the theoretical framework of correlated electron systems and describing their importance through elegant written and oral communications.“[8]
- 2023 – Alexander Prize, University of Tennessee[9]
Bibliography
Books
- Nanoscale Phase Separation and Colossal Magnetoresistance (2003) ISBN 9783540432456
- Multifunctional Oxide Heterostructures (2012) ISBN 9780199584123
Selected articles
- Dagotto, E., Riera, J., & Scalapino, D. (1992). Superconductivity in ladders and coupled planes. Physical Review B, 45(10), 5744.
- Barnes, T., Dagotto, E., Riera, J., & Swanson, E. S. (1993). Excitation spectrum of Heisenberg spin ladders. Physical Review B, 47(6), 3196.
- Dagotto, E. (1994). Correlated electrons in high-temperature superconductors. Reviews of Modern Physics, 66(3), 763.
- Dagotto, E., & Rice, T. M. (1996). Surprises on the way from one-to two-dimensional quantum magnets: The ladder materials. Science, 271(5249), 618-623.
- Yunoki, S., Hu, J., Malvezzi, A. L., Moreo, A., Furukawa, N., & Dagotto, E. (1998). Phase separation in electronic models for manganites. Physical Review Letters, 80(4), 845.
- Moreo, A., Yunoki, S., & Dagotto, E. (1999). Phase separation scenario for manganese oxides and related materials. Science, 283(5410), 2034-2040.
- Dagotto, E., Hotta, T., & Moreo, A. (2001). Colossal magnetoresistant materials: the key role of phase separation. Physics Reports, 344(1-3), 1-153.
- Dagotto, E. (2005). Complexity in strongly correlated electronic systems. Science, 309(5732), 257-262.
- Sergienko, I. A., & Dagotto, E. (2006). Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites. Physical Review B, 73(9), 094434.
- Dai, P., Hu, J., & Dagotto, E. (2012). Magnetism and its microscopic origin in iron-based high-temperature superconductors. Nature Physics, 8(10), 709-718.
References
- ^ a b "Elbio R Dagotto | ORNL". www.ornl.gov.
- ^ a b "Affiliates – Elbio Dagotto | Tennessee Quantum Center".
- ^ a b "Department of Physics and Astronomy | The University of Tennessee, Knoxville". www.phys.utk.edu.
- ^ a b "Elected Fellows | American Association for the Advancement of Science (AAAS)". www.aaas.org.
- ^ a b "APS Fellow Archive". www.aps.org.
- ^ a b "Physical Review Journals - Outstanding Referees". journals.aps.org.
- ^ a b "Distinguished referees".
- ^ a b "Prize Recipient". www.aps.org.
- ^ a b "2023 Alexander Prize | Honors Banquets". honorsbanquet.utk.edu.
- ^ "Robert Sugar | Department of Physics - UC Santa Barbara". www.physics.ucsb.edu.
- ^ "Dagotto Group Homepage". sces.phys.utk.edu.
- ^ a b Dagotto, Elbio (July 8, 2005). "Complexity in Strongly Correlated Electronic Systems". Science. 309 (5732): 257–262. doi:10.1126/science.1107559 – via CrossRef.
- ^ Anderson, P. W. (August 4, 1972). "More Is Different: Broken symmetry and the nature of the hierarchical structure of science". Science. 177 (4047): 393–396. doi:10.1126/science.177.4047.393 – via CrossRef.
- ^ a b Dagotto, Elbio (July 1, 1994). "Correlated electrons in high-temperature superconductors". Reviews of Modern Physics. 66 (3): 763–840. doi:10.1103/RevModPhys.66.763 – via APS.
- ^ Dagotto, Elbio; Hotta, Takashi; Moreo, Adriana (April 1, 2001). "Colossal magnetoresistant materials: the key role of phase separation". Physics Reports. 344 (1): 1–153. doi:10.1016/S0370-1573(00)00121-6 – via ScienceDirect.
- ^ Dagotto, E.; Riera, J.; Scalapino, D. (March 1, 1992). "Superconductivity in ladders and coupled planes". Physical Review B. 45 (10): 5744–5747. doi:10.1103/PhysRevB.45.5744 – via APS.
- ^ Dagotto, Elbio; Rice, T. M. (February 2, 1996). "Surprises on the Way from One- to Two-Dimensional Quantum Magnets: The Ladder Materials". Science. 271 (5249): 618–623. doi:10.1126/science.271.5249.618 – via CrossRef.
- ^ Dagotto, Elbio (November 1, 1999). "Experiments on ladders reveal a complex interplay between a spin-gapped normal state and superconductivity". Reports on Progress in Physics. 62 (11): 1525–1571. doi:10.1088/0034-4885/62/11/202 – via CrossRef.
- ^ Takahashi, Hiroki; Sugimoto, Akira; Nambu, Yusuke; Yamauchi, Touru; Hirata, Yasuyuki; Kawakami, Takateru; Avdeev, Maxim; Matsubayashi, Kazuyuki; Du, Fei; Kawashima, Chizuru; Soeda, Hideto; Nakano, Satoshi; Uwatoko, Yoshiya; Ueda, Yutaka; Sato, Taku J.; Ohgushi, Kenya (October 23, 2015). "Pressure-induced superconductivity in the iron-based ladder material BaFe2S3". Nature Materials. 14 (10): 1008–1012. doi:10.1038/nmat4351 – via www.nature.com.
- ^ a b Şen, Cengiz; Alvarez, Gonzalo; Dagotto, Elbio (March 21, 2007). "Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: The Origin of the Colossal Magnetoresistance Effect". Physical Review Letters. 98 (12): 127202. doi:10.1103/PhysRevLett.98.127202 – via APS.
- ^ Hotta, Takashi; Feiguin, Adrian; Dagotto, Elbio (May 21, 2001). "Stripes Induced by Orbital Ordering in Layered Manganites". Physical Review Letters. 86 (21): 4922–4925. doi:10.1103/PhysRevLett.86.4922 – via APS.
- ^ Liang, Shuhua; Moreo, Adriana; Dagotto, Elbio (July 24, 2013). "Nematic State of Pnictides Stabilized by Interplay between Spin, Orbital, and Lattice Degrees of Freedom". Physical Review Letters. 111 (4): 047004. doi:10.1103/PhysRevLett.111.047004 – via APS.
- ^ Dagotto, Elbio; Riera, Jose; Young, A. P. (August 1, 1990). "Dynamical pair susceptibilities in the t-J and Hubbard models". Physical Review B. 42 (4): 2347–2352. doi:10.1103/PhysRevB.42.2347 – via APS.
- ^ Sorella, S.; Martins, G. B.; Becca, F.; Gazza, C.; Capriotti, L.; Parola, A.; Dagotto, E. (February 28, 2002). "Superconductivity in the Two-Dimensional $\mathit{t}\ensuremath{-}\mathit{J}$ Model". Physical Review Letters. 88 (11): 117002. doi:10.1103/PhysRevLett.88.117002 – via APS.
- ^ Burgy, J.; Mayr, M.; Martin-Mayor, V.; Moreo, A.; Dagotto, E. (December 13, 2001). "Colossal Effects in Transition Metal Oxides Caused by Intrinsic Inhomogeneities". Physical Review Letters. 87 (27): 277202. doi:10.1103/PhysRevLett.87.277202 – via APS.
- ^ Sergienko, I. A.; Dagotto, E. (March 23, 2006). "Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites". Physical Review B. 73 (9): 094434. doi:10.1103/PhysRevB.73.094434 – via APS.
- ^ Sergienko, Ivan A.; Şen, Cengiz; Dagotto, Elbio (November 30, 2006). "Ferroelectricity in the Magnetic $E$-Phase of Orthorhombic Perovskites". Physical Review Letters. 97 (22): 227204. doi:10.1103/PhysRevLett.97.227204 – via APS.
- ^ Picozzi, S.; Yamauchi, K.; Sanyal, B.; Sergienko, I. A.; Dagotto, E. (November 26, 2007). "Dual Nature of Improper Ferroelectricity in a Magnetoelectric Multiferroic". Physical Review Letters. 99 (22): 227201. doi:10.1103/PhysRevLett.99.227201 – via APS.
- ^ Dai, Pengcheng; Hu, Jiangping; Dagotto, Elbio (October 23, 2012). "Magnetism and its microscopic origin in iron-based high-temperature superconductors". Nature Physics. 8 (10): 709–718. doi:10.1038/nphys2438 – via www.nature.com.
- ^ Dagotto, Elbio (May 20, 2013). "Colloquium: The unexpected properties of alkali metal iron selenide superconductors". Reviews of Modern Physics. 85 (2): 849–867. doi:10.1103/RevModPhys.85.849 – via APS.
- ^ Herbrych, J.; Heverhagen, J.; Patel, N. D.; Alvarez, G.; Daghofer, M.; Moreo, A.; Dagotto, E. (July 10, 2019). "Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors". Physical Review Letters. 123 (2): 027203. doi:10.1103/PhysRevLett.123.027203 – via APS.
- ^ Patel, N. D.; Nocera, A.; Alvarez, G.; Moreo, A.; Johnston, S.; Dagotto, E. (June 21, 2019). "Fingerprints of an orbital-selective Mott phase in the block magnetic state of BaFe2Se3 ladders". Communications Physics. 2 (1): 1–8. doi:10.1038/s42005-019-0155-3 – via www.nature.com.
- ^ Herbrych, J.; Kaushal, N.; Nocera, A.; Alvarez, G.; Moreo, A.; Dagotto, E. (September 13, 2018). "Spin dynamics of the block orbital-selective Mott phase". Nature Communications. 9 (1): 3736. doi:10.1038/s41467-018-06181-6 – via www.nature.com.
- ^ Herbrych, J.; Heverhagen, J.; Alvarez, G.; Daghofer, M.; Moreo, A.; Dagotto, E. (July 14, 2020). "Block–spiral magnetism: An exotic type of frustrated order". Proceedings of the National Academy of Sciences. 117 (28): 16226–16233. doi:10.1073/pnas.2001141117. PMC 7368323. PMID 32601231 – via CrossRef.
{{cite journal}}
: CS1 maint: PMC format (link) - ^ Herbrych, J.; Środa, M.; Alvarez, G.; Mierzejewski, M.; Dagotto, E. (May 19, 2021). "Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators". Nature Communications. 12 (1): 2955. doi:10.1038/s41467-021-23261-2 – via www.nature.com.
- ^ Mohanta, Narayan; Okamoto, Satoshi; Dagotto, Elbio (July 15, 2021). "Skyrmion control of Majorana states in planar Josephson junctions". Communications Physics. 4 (1): 1–8. doi:10.1038/s42005-021-00666-5 – via www.nature.com.
- ^ a b Patel, Niravkumar D.; Kaushal, Nitin; Nocera, Alberto; Alvarez, Gonzalo; Dagotto, Elbio (May 8, 2020). "Emergence of superconductivity in doped multiorbital Hubbard chains". npj Quantum Materials. 5 (1): 1–9. doi:10.1038/s41535-020-0228-2 – via www.nature.com.
- ^ Dagotto, Elbio (November 16, 2007). "When Oxides Meet Face to Face". Science. 318 (5853): 1076–1077. doi:10.1126/science.1151094 – via CrossRef.
- ^ Dagotto, Elbio (January 23, 2011). "The conducting face of an insulator". Nature. 469 (7329): 167–168. doi:10.1038/469167a – via www.nature.com.
- ^ "Magnetism, conductivity, and orbital order in ${({\text{LaMnO".
{{cite journal}}
: Cite journal requires|journal=
(help)_{3})}_{2n}/{({\text{SrMnO}}_{3})}_{n}$ superlattices|first1=Shuai|last1=Dong|first2=Rong|last2=Yu|first3=Seiji|last3=Yunoki|first4=Gonzalo|last4=Alvarez|first5=J.-M.|last5=Liu|first6=Elbio|last6=Dagotto|date=November 21, 2008|journal=Physical Review B|volume=78|issue=20|pages=201102|via=APS|doi=10.1103/PhysRevB.78.201102}} - ^ Mohanta, Narayan; Christianson, Andrew D.; Okamoto, Satoshi; Dagotto, Elbio (December 11, 2020). "Signatures of a liquid-crystal transition in spin-wave excitations of skyrmions". Communications Physics. 3 (1): 1–9. doi:10.1038/s42005-020-00489-w – via www.nature.com.
- ^ Kogut, J. B.; Dagotto, Elbio; Kocic, A. (February 29, 1988). "New phase of quantum electrodynamics: A nonperturbative fixed point in four dimensions". Physical Review Letters. 60 (9): 772–775. doi:10.1103/PhysRevLett.60.772 – via APS.
- ^ Fradkin, Eduardo; Dagotto, Elbio; Boyanovsky, Daniel (December 8, 1986). "Physical Realization of the Parity Anomaly in Condensed Matter Physics". Physical Review Letters. 57 (23): 2967–2970. doi:10.1103/PhysRevLett.57.2967 – via APS.
- ^ Dagotto, Elbio; Fradkin, Eduardo; Moreo, Adriana (August 1, 1988). "SU(2) gauge invariance and order parameters in strongly coupled electronic systems". Physical Review B. 38 (4): 2926–2929. doi:10.1103/PhysRevB.38.2926 – via APS.
- ^ Dagotto, Elbio; Moreo, Adriana (November 6, 1989). "Phase diagram of the frustrated spin-1/2 Heisenberg antiferromagnet in 2 dimensions". Physical Review Letters. 63 (19): 2148–2151. doi:10.1103/PhysRevLett.63.2148 – via APS.
- ^ Processes, National Research Council (US) Committee on Biomolecular Materials and (May 23, 2008). Inspired by Biology: From Molecules to Materials to Machines. National Academies Press (US) – via www.ncbi.nlm.nih.gov.
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