Enhanced magnetic anisotropy energy density for superparamagnetic particles of cobalt

被引：30

作者：

Hickey, BJ ^{[1
]}

Howson, MA ^{[1
]}

Greig, D ^{[1
]}

Wiser, N ^{[1
]}

机构：

[1] BAR ILAN UNIV,DEPT PHYS,RAMAT GAN,ISRAEL

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.53.32

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use our measurements of the magnetization and the magnetoresistance for very small superparamagnetic particles of Co to obtain the low-temperature value of the magnetic anisotropy energy density, C approximate to 3x10(8) erg/cm(3). This is nearly two orders of magnitude larger than the corresponding value for C for bulk Co. The enormous enhancement of C for very small particles of Co is consistent with results previously reported for very small particles of Fe and of FeNi.

引用

页码：32 / 33

页数：2

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