Bulk and surface sensitive high-resolution photoemission study of Mott-Hubbard systems SrVO3 and CaVO3

R. Eguchi, T. Kiss, S. Tsuda, T. Shimojima, T. Mizokami, A. Chainani, S. Shin, I. H. Inoue, T. Togashi, S. Watanabe, C. Q. Zhang, C. T. Chen, M. Arita, K. Shimada, H. Namatame, M. Taniguchi

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4 Citations (Scopus)

Abstract

We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with bulk and surface sensitive high-resolution photoemission spectroscopy using low-energy photons ( h ν = 7-21 eV), including a VUV laser. A clear suppression of the density of states within ∼ 0.2 eV of the Fermi level ( EF ) is found. The coherent band in SrVO3 and CaVO3 is shown to consist of surface and bulk-derived features. The results indicate that the stronger distortion on the surface of CaVO3 compared to SrVO3 is directly reflected in the coherent DOS at EF, consistent with recent theory.

Original languageEnglish
Pages (from-to)330-331
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - May 1 2006
Externally publishedYes

Keywords

  • Bulk sensitive photoemission
  • CaVO
  • Mott-Hubbard systems
  • SrVO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Eguchi, R., Kiss, T., Tsuda, S., Shimojima, T., Mizokami, T., Chainani, A., Shin, S., Inoue, I. H., Togashi, T., Watanabe, S., Zhang, C. Q., Chen, C. T., Arita, M., Shimada, K., Namatame, H., & Taniguchi, M. (2006). Bulk and surface sensitive high-resolution photoemission study of Mott-Hubbard systems SrVO3 and CaVO3. Physica B: Condensed Matter, 378-380(SPEC. ISS.), 330-331. https://doi.org/10.1016/j.physb.2006.01.120