title: Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La(0.5)Sr(1.5)MnO₄.
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.
authors.affiliation: Institute for Solid State Research, IFW Dresden, Post Office Box 270116, D-01171 Dresden, Germany.
authors.forename: D V
authors.initials: DV
authors.lastname: Evtushinsky
authors.forename: D S
authors.initials: DS
authors.lastname: Inosov
authors.forename: G
authors.initials: G
authors.lastname: Urbanik
authors.forename: V B
authors.initials: VB
authors.lastname: Zabolotnyy
authors.forename: R
authors.initials: R
authors.lastname: Schuster
authors.forename: P
authors.initials: P
authors.lastname: Sass
authors.forename: T
authors.initials: T
authors.lastname: Hänke
authors.forename: C
authors.initials: C
authors.lastname: Hess
authors.forename: B
authors.initials: B
authors.lastname: Büchner
authors.forename: R
authors.initials: R
authors.lastname: Follath
authors.forename: P
authors.initials: P
authors.lastname: Reutler
authors.forename: A
authors.initials: A
authors.lastname: Revcolevschi
authors.forename: A A
authors.initials: AA
authors.lastname: Kordyuk
authors.forename: S V
authors.initials: SV
authors.lastname: Borisenko