Magnetization Reversal of Tb-Co/Fe19Ni81 Films with a Unidirectional Anisotropy

被引：9

作者：

Balymov, K. G. ^{[1
]}

Vas'kovskiy, V. O. ^{[1
]}

Svalov, A. V. ^{[1
]}

Stepanova, E. A. ^{[1
]}

Kulesh, N. A. ^{[1
]}

机构：

[1] Ural State Univ, Ekaterinburg 620083, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2010年 / 110卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

magnetic films; anisotropy; temperature; magnetization reversal;

D O I：

10.1134/S0031918X10120021

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Conditions have been found for the realization of induced in-plane uniaxial anisotropy of the amorphous Tb31Co69 films and of unidirectional anisotropy in the Permalloy layers in the composite two-layered Tb31Co69/Fe19Ni81 films. The mechanisms of magnetization reversal in such film structures have been studied in a temperature range of 5-300 K. It has been found that a decrease in temperature leads to a transformation of hysteresis loops, a significant increase in the field of unidirectional anisotropy, and a nonmonotonic change in the coercive force of the Permalloy layer. The regularities found are interpreted taking into account the variation in the properties of the amorphous layer Tb31Co69 with temperature under the assumption on a temperature-induced change in the localization of the interlayer magnetic boundary, which is formed upon a layer-by-layer magnetization reversal of the film structure.

引用

页码：526 / 530

页数：5

共 11 条

[1]

Andreenko A. S., 1997, PHYS-USP, V40, P581

[2] INVESTIGATION OF THE EXCHANGE MECHANISM IN NIFE-TBCO BILAYERS [J].