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

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number155103
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number15
DOIs
Publication statusPublished - 2006
Externally publishedYes

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Photoelectron spectroscopy
Electronic structure
photoelectric emission
Ions
electronic structure
X rays
Oxidation
oxidation
Core levels
Exchange interactions
Valence bands
Oxides
spectroscopy
spinel
Charge transfer
ions
x rays
charge transfer
valence
preparation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electronic structure of a V2 O4 (A=Li, Zn, and Cd) studied by x-ray photoemission spectroscopy. / Takubo, K.; Son, J. Y.; Mizokawa, Takashi; Ueda, H.; Isobe, M.; Matsushita, Y.; Ueda, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 74, No. 15, 155103, 2006.

Research output: Contribution to journalArticle

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AU - Takubo, K.

AU - Son, J. Y.

AU - Mizokawa, Takashi

AU - Ueda, H.

AU - Isobe, M.

AU - Matsushita, Y.

AU - Ueda, Y.

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