Temperature-dependent perpendicular magnetic anisotropy of Co-Pt on Cr2O3 antiferromagnetic oxide

被引：15
作者：
Nozaki, T. [1 ]
Oida, M. [1 ]
Ashida, T. [1 ]
Shimomura, N. [1 ]
Sahashi, M. [1 ]
机构：
[1] Tohoku Univ, Dept Elect Engn, Sendai, Miyagi 9808579, Japan
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 24期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
EXCHANGE BIAS; PD/CO;
D O I：
10.1063/1.4850533
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We clarify the origin of the interface perpendicular magnetic anisotropy (PMA) at the Cr2O3/ferromagnet interface by investigating the temperature dependence of the magnetic properties of Cr2O3/Co-Pt. We observed positive large interface PMA both above and below the blocking temperature of Cr2O3, with the PMA being less sensitive to temperature. Our results indicate that the effect of the metal/oxide interface, as well as that of the MgO/CoFeB interface, contributes strongly to the PMA at the Cr2O3/Co-Pt interface, although the effect of perpendicular exchange coupling might also slightly contribute to the interface PMA. (C) 2013 AIP Publishing LLC.
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页数：4
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