Magneto crystalline anisotropy energy in L10-type CoPt single crystals

被引：21

作者：

Shima, H ^{[1
]}

Oikawa, K

Fujita, A

Fukamichi, K

Ishida, K

Nakamura, S

Nojima, T

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

[2] Natl Inst Adv Ind Sci & Technol, Sendai, Miyagi 9838551, Japan

[3] Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, Japan

[4] Tohoku Univ, Ctr Low Temp Sci, Low Temp Sci Div, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 290卷

关键词：

anisotropy-uniaxial; anisotropy-magnetocrystalline; ordered alloy;

D O I：

10.1016/j.jmmm.2004.11.536

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

L1(0)-type Co100-xPtx single crystals were prepared by atomic ordering under compressive stress and the magnetic properties were investigated. The second order magnetocrystalline anisotropy constant K-1 at 298 K exhibits a maximum value of 4.1 x 10(7) erg cm(-3) at x = 50. On the other hand, the fourth order magnetocrystalline anisotropy constant K-2 becomes minimum at the same composition. The large uniaxial magnetocrystalline anisotropy constant K-U with a low saturation magnetization M-S in L1(0)-type Co100-xPtx would bring about the thermal stability of the single magnetic domain state, as well as the sharp coherent magnetization reversal. (c) 2004 Published by Elsevier B.V.

引用

页码：566 / 569

页数：4

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