Magnetic anisotropy in IrMn/Co structures with an alternative sequence of deposition of antiferromagnetic and ferromagnetic layers

被引:7
作者
Khomenko, E. V. [1 ]
Chechenin, N. G. [1 ]
Dzhun', I. O. [1 ]
Perov, N. S. [2 ]
Samsonova, V. V. [2 ]
Goikhman, A. Yu. [3 ]
Zenkevich, A. V. [3 ]
机构
[1] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119992, Russia
[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia
[3] Natl Res Nucl Univ, Moscow Engn Phys Inst, Moscow 115409, Russia
关键词
EXCHANGE; RESONANCE; MICROSTRUCTURE; TEMPERATURE; FILMS; MN;
D O I
10.1134/S1063783410080214
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The preparation conditions and the magnitudes of the uniaxial and unidirectional magnetic anisotropies of IrMn/Co structures with an alternative sequence of deposition of antiferromagnetic and ferromagnetic layers upon heat treatment and cooling in an external magnetic field have been investigated. It has been revealed that the unidirectional anisotropy (exchange bias) arises in the structure with an antiferromagnetic layer deposited on a ferromagnetic layer (TS structure) at an annealing temperature of higher than 100A degrees C. In structures with a ferromagnetic layer deposited on an antiferromagnetic layer (BS structure), the exchange bias does not arise in the annealing temperature range under investigation. The possible factors responsible for this effect and the ratio between the temperature of the appearance of the exchange bias and the N,el temperature have been discussed.
引用
收藏
页码:1701 / 1708
页数:8
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