Electron paramagnetic resonance study of Zn1-xCoxO:: A predicted high-temperature ferromagnetic semiconductor -: art. no. 041308

被引：126

作者：

Jedrecy, N

von Bardeleben, HJ

Zheng, Y

Cantin, JL

机构：

[1] CNRS, Lab Mineral, F-75252 Paris 05, France

[2] Univ Paris 06, F-75252 Paris 05, France

[3] Univ Paris 07, F-75252 Paris 05, France

[4] CNRS, Phys Solides Grp, F-75005 Paris, France

[5] Univ Paris 06, F-75005 Paris, France

[6] Univ Paris 07, F-75005 Paris, France

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.69.041308

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of Co2+ ions in epitaxial (Zn,Co)O layers with 10% Co concentration have been studied by electron paramagnetic resonance spectroscopy. The Co-related EPR spectrum is characterized by a 200-G broad anisotropic single line with g factors close to those of the isolated Co2+ ion. The temperature dependence of the EPR signal follows a Curie-Weiss law with a critical temperature of +12 K. We find no evidence for a high-temperature ferromagnetic state. Magnetocrystalline anisotropy is observed and a canted spin arrangement is suggested.

引用

页数：4

共 21 条

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