High-energy spectroscopy study of the ferromagnetic diluted magnetic semiconductor Zn1-xVxO

被引:34
作者
Ishida, Y
Hwang, JI
Kobayashi, M
Fujimori, A
Saeki, H
Tabata, H
Kawai, T
机构
[1] Univ Tokyo, Fac Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
[2] Univ Tokyo, Dept Complex Sci, Tokyo 1130033, Japan
[3] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan
关键词
photoemission; room temperature ferromagnet; diluted magnetic semiconductor;
D O I
10.1016/j.physb.2004.06.037
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Zn1-xVxO, which shows ferromagnetism above the room temperature (RT), has been studied by photoemission spectroscopy. We find that V 3d-drived states are created in the band gap of ZnO and the Fermi level was located close to the Zn 4s conduction band minimum. The suppression of spectral weight near the Fermi level indicates the importance of Coulomb interactions between V 3d electrons. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:304 / 306
页数:3
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