Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors

J Herbrych; J Heverhagen; N D Patel; G Alvarez; M Daghofer; A Moreo; E Dagotto

doi:10.1103/PhysRevLett.123.027203

Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors

Phys Rev Lett. 2019 Jul 12;123(2):027203. doi: 10.1103/PhysRevLett.123.027203.

Authors

J Herbrych^{1

2

3}, J Heverhagen^{4

5}, N D Patel⁶, G Alvarez⁷, M Daghofer^{4

5}, A Moreo^{1

2}, E Dagotto^{1

2}

Affiliations

¹ Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
² Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
³ Department of Theoretical Physics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
⁴ Institute for Functional Matter and Quantum Technologies, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany.
⁵ Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany.
⁶ Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
⁷ Computational Sciences and Engineering Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

PMID: 31386537
DOI: 10.1103/PhysRevLett.123.027203

Abstract

Inelastic neutron scattering recently confirmed the theoretical prediction of a ↑↑↓↓-magnetic state along the legs of quasi-one-dimensional iron-based ladders in the orbital-selective Mott phase (OSMP). We show here that electron doping of the OSMP induces a whole class of novel block states with a variety of periodicities beyond the previously reported π/2 pattern. We discuss the magnetic phase diagram of the OSMP regime that could be tested by neutrons once appropriate quasi-1D quantum materials with the appropriate dopings are identified.