Determination of the spin polarization of half-metallic CrO2 by point contact Andreev reflection

被引：432

作者：

Ji, Y ^{[1
]}

Strijkers, GJ

Yang, FY

Chien, CL

Byers, JM

Anguelouch, A

Xiao, G

Gupta, A

机构：

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

[2] USN, Res Lab, Washington, DC 20375 USA

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

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.86.5585

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Andreev reflection at a Pb/CrO2 point contact has been used to determine the spin polarization of single-crystal CrO2 films made by chemical vapor deposition. The spin polarization is found to be 0.96 +/- 0.01, which confirms that CrO2 is a half-metallic ferromagnet, as theoretically predicted.

引用

页码：5585 / 5588

页数：4

共 23 条

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