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

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)330-331
頁數2
期刊Physica B: Condensed Matter
378-380
發行號SPEC. ISS.
DOIs
出版狀態Published - 2006 五月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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