Magnetic properties of Zn1-xCoxO

被引：24

作者：

Han, SJ

Lee, BY

Ku, JS

Kim, YB

Jeong, YH ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Electron Spin Sci Ctr, Pohang 790784, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

magnetic semiconductor; ZnCoO; magnetic properties;

D O I：

10.1016/j.jmmm.2003.12.792

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic properties of polycrystalline Co-doped ZnO were investigated. Zn1-xCoxO samples with x < 0.2 remained paramagnetic down to 2 K, and no sign of ferromagnetism was observed. The high-temperature susceptibility data followed the Curie-Weiss law with negative Weiss temperatures. The antiferromagnetic coupling constant extracted was J/k(B) approximate to -40 K. For a sample with larger x (similar to0.25) a spin glass transition was observed. (C) 2003 Elsevier B.V. All rights reserved.

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页码：2008 / 2009

页数：2

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