Magneto-optical properties of ZnO-based diluted magnetic semiconductors

被引：271
|
作者：
Ando, K
Saito, H
Jin, ZW
Fukumura, T
Kawasaki, M
Matsumoto, Y
Koinuma, H
机构：
[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan
[2] Tokyo Inst Technol, Dept Innovat & Engn Mat, Yokohama, Kanagawa 2268502, Japan
[3] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan
[4] Tokyo Inst Technol, Frontier Collaborat Res Ctr, Yokohama, Kanagawa 2268503, Japan
[5] Combinatorial Mat Explorat & Technol, Tsukuba, Ibaraki 3050044, Japan
[6] Japan Sci & Technol Corp, CREST, Tokyo, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 11期
关键词：
D O I：
10.1063/1.1356035
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic circular dichroism (MCD) spectra of Zn1-xTMxO (TM = Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) films were measured to clarify their magneto-optical properties. Noticeable magneto-optical effect was not observed for Zn1-xScxO, Zn1-xTixO, Zn1-xVxO, and Zn1-xCrxO. On the contrary, Zn1-xMnxO, Zn1-xCoxO, Zn1-xNixO, and Zn1-xCuxO showed pronounced negative MCD peaks near 3.4 eV which correspond to the band gap of the host ZnO semiconductor. These results show that ZnO alloyed with Mn, Co, Ni, and Cu is a diluted magnetic semiconductor with strong exchange interaction between sp-band carriers and localized d electrons. (C) 2001 American Institute of Physics.
引用
收藏
页码：7284 / 7286
页数：3
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