Critical behavior of epitaxial half-metallic ferromagnetic CrO2 films -: art. no. 092403

被引：28

作者：

Yang, FY ^{[1
]}

Chien, CL

Li, XW

Xiao, G

Gupta, A

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[2] Brown Univ, Dept Phys, Providence, RI 02912 USA

[3] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.63.092403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Critical behavior of the epitaxial CrO2 film, a half metallic ferromagnet, has been determined by magnetometry with the magnetic field along the uniaxial anisotropy axis. The critical temperature has been determined to be T-C = 386.50+/-0.05 K. The critical exponents of beta =0.371+/-0.005 and gamma =1.43+/-0.01 indicate that CrO2 is a Heisenberg ferromagnet.

引用

页数：4

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