Magnetism in Mn-doped ZnO bulk samples

被引：61

作者：

Chen, W ^{[1
]}

Zhao, LF ^{[1
]}

Wang, YQ ^{[1
]}

Miao, JH ^{[1
]}

Liu, S ^{[1
]}

Xia, ZC ^{[1
]}

Yuan, SL ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2005年 / 134卷 / 12期

基金：

中国国家自然科学基金;

关键词：

diluted magnetic semiconductor; Mn-doped ZnO; solid state reaction; magnetism;

D O I：

10.1016/j.ssc.2005.03.023

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetic properties of Mn-doped ZnO (Zn0.98Mn0.02O) bulk materials prepared by the solid state reaction method were investigated by measuring magnetization as functions of temperature and magnetic field. The results indicate that the samples sintered in Ar gas show ferromagnetic behavior at room temperatures, but it disappears in samples sintered in air. Even for ferromagnetic samples, the obtained saturation value of magnetization is much smaller than theoretical value, suggesting the possibility of that there was a strong anti-ferromagnetic exchange coupling in this kind of compounds. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：827 / 830

页数：4

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