The observation of a surface resonance state in the valence-band structure of the perovskite La0.65Ba0.35MnO3

Carlo Waldfried, D. N. McIlroy, S. H. Liou, R. Sabiryanov, S. S. Jaswal, P. A. Dowben

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The valence-band electronic structure of a crystalline thin film of La0.65Ba0.35MnO3 has been investigated using angle-resolved photoemission. The observed valence-band structure has a substantial surface contribution and is strongly influenced by the surface conditions. Surface contamination and disorder attenuate the emission from a Mn-3d-derived state at a binding energy of 3.3 eV. This state was found to be localized at the surface with dispersion only in the plane of the surface and exhibited a strong intensity dependence on emission angle. On the basis of a simple LMTO-ASA bulk band calculation, it is clear that this state does not fall within a bulk band gap. We have therefore identified this Mn-3d-derived state at 3.3 eV below EF as a surface resonance.

Original languageEnglish (US)
Pages (from-to)1031-1038
Number of pages8
JournalJournal of Physics Condensed Matter
Volume9
Issue number5
DOIs
StatePublished - Feb 3 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'The observation of a surface resonance state in the valence-band structure of the perovskite La<sub>0.65</sub>Ba<sub>0.35</sub>MnO<sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this