Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La(0.5)Sr(1.5)MnO₄

D V Evtushinsky; D S Inosov; G Urbanik; V B Zabolotnyy; R Schuster; P Sass; T Hänke; C Hess; B Büchner; R Follath; P Reutler; A Revcolevschi; A A Kordyuk; S V Borisenko

doi:10.1103/PhysRevLett.105.147201

Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La(0.5)Sr(1.5)MnO₄

Phys Rev Lett. 2010 Oct 1;105(14):147201. doi: 10.1103/PhysRevLett.105.147201. Epub 2010 Sep 28.

Authors

D V Evtushinsky¹, D S Inosov, G Urbanik, V B Zabolotnyy, R Schuster, P Sass, T Hänke, C Hess, B Büchner, R Follath, P Reutler, A Revcolevschi, A A Kordyuk, S V Borisenko

Affiliation

¹ Institute for Solid State Research, IFW Dresden, Post Office Box 270116, D-01171 Dresden, Germany.

PMID: 21230862
DOI: 10.1103/PhysRevLett.105.147201

Abstract

The single-layered half-doped manganite La(0.5)Sr(1.5)MnO₄ (LSMO), was studied by means of the angle-resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), and resistivity measurements. STM revealed a smooth reconstruction-free surface; the density of states, extracted from photoemission and tunneling spectroscopy, is in agreement with transport measurements. The derived from ARPES Fermi surface (FS) nesting properties correspond to the known pattern of the charge-orbital ordering (COO), which implies that FS instability is related to the propensity to form a COO state in LSMO.