Valence band ARPES study of La1-xSrxMnO3 single crystals

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

We have observed a feature at similar to2.5 eV binding energy (BE) in the valence band of La1-xSrxMnO3 single crystals not previously reported in the literature. The relative intensity of this feature decreases with increasing Sr concentration x and has a strong photon energy dependence. It also exhibits a complicated angle dependence. In this report we present a full set of angular-resolved photoemission spectra performed on (100) La1-xSrxMnO3 single crystals. The shape of the valence band has a strong dependence on emission and incident angles. In particular, at hupsilon = 130 eV the intensity of the 2.5 eV BE feature increases when the emission angle changes from 0 to 20degrees, and then sharply drops. The shape of the valence band changes with incident angle as well, and the feature is more pronounced at larger incident angles. A strong dependences on Sr doping as well as photon energy is also established. (C) 2004 Elsevier B.V. All rights reserved.

Details

Authors
  • LL Lev
  • MB Tsetlin
  • Mats Leandersson
  • AA Zakharov
  • MN Mikheeva
  • Ingolf Lindau
  • AM Balbashev
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
  • Natural Sciences
  • Physical Sciences

Keywords

  • manganites, angle-resolved photoemission, colossal magnetic resistance
Original languageEnglish
Title of host publicationICESS-9 Proceedings of the 9th International Conference on Electronic Spectroscopy and Structure (Journal of Electron Spectroscopy and Related Phenomena)
PublisherElsevier
Pages499-503
Volume137-40
Publication statusPublished - 2004
Publication categoryResearch
Peer-reviewedYes
Event9th International Conference on Electronic Spectroscopy and Structure - Uppsala, Sweden
Duration: 2003 Jun 302003 Jul 4

Publication series

Name
Volume137-40
ISSN (Print)0368-2048

Conference

Conference9th International Conference on Electronic Spectroscopy and Structure
CountrySweden
CityUppsala
Period2003/06/302003/07/04