Structural and magnetic properties of transition metal substituted ZnO

被引：272

作者：

Kolesnik, S ^{[1
]}

Dabrowski, B ^{[1
]}

Mais, J ^{[1
]}

机构：

[1] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1644638

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Structural and magnetic properties have been studied for polycrystalline Zn1-xTMxO, where TM (transition metal ions)=Mn, Fe, and Co. No bulk ferromagnetism was observed for single-phase materials, contrary to the existing theories. Single-phase samples demonstrate paramagnetic Curie-Weiss behavior with antiferromagnetic interactions, similar to other diluted magnetic semiconductors. Nonoptimal synthesis conditions lead to formation of second phases that are responsible for spin-glass behavior {ZnMnO3 impurity for Zn1-xMnxO [S. Kolesnik , J. Supercond. 15, 251 (2002)]} or high-temperature ferromagnetic ordering [Co metal for Zn1-xCoxO with the Curie temperature T-C>800 K or (Zn,Fe)(3)O-4 for Zn1-xFexO with T-C=440 K]. (C) 2004 American Institute of Physics.

引用

页码：2582 / 2586

页数：5

共 28 条

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