Transport and Magnetic Properties of Ferromagnetic Co-Al-O and Fe-Al-O Granular Films

被引：6
|
作者：
Nakamura, S. [1 ]
Iwashita, T. [1 ]
Nojima, T. [1 ]
Yoshihara, A.
Ohnuma, S.
Fujimori, H.
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
2ND INTERNATIONAL SYMPOSIUM ON ADVANCED MAGNETIC MATERIALS AND APPLICATIONS (ISAMMA 2010) | 2011年 / 266卷
关键词：
SYSTEMS; ALLOYS; MINIMA;
D O I：
10.1088/1742-6596/266/1/012019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the transport and magnetic properties of ferromagnetic Fe-Al-O and Co-Al-O granular films. A negative linear magnetoresistivity is found at least up to 27 T for Co-Al-O films. The temperature dependence of the magnetization of Fe-Al-O films can be explained in terms of the T-1.5-law for three dimensional spin waves theory, but that of Co-Al-O films does not obey the simple power law expected from this theory. The coercive field of a Co-Al-O film is strongly dependent on temperature.
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页数：5
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