Electronic structure of a V2 O4 (A=Li, Zn, and Cd) studied by x-ray photoemission spectroscopy

K. Takubo, J. Y. Son, T. Mizokawa, H. Ueda, M. Isobe, Y. Matsushita, Y. Ueda

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We have studied the electronic structure of the spinel-type V oxides LiV2 O4, ZnV2 O4, and CdV2 O4 using x-ray photoemission spectroscopy. The p - d charge-transfer energy was estimated from the valence-band spectra and the exchange interaction due to d - d transfer Tσ was found to be larger than that due to p - d transfer Tπ in these systems, consistent with the existing theoretical models. Based on the V 2p core-level spectra, we discuss the oxidation state of V ions in the surface region. Interestingly, only in ZnV2 O4 does the oxidation state of V ions strongly depend on the procedure of sample preparation.

本文言語English
論文番号155103
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
74
15
DOI
出版ステータスPublished - 2006 10 12
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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