Exchange bias in Co/FeMn and Co/IrMn structures induced by deposition in presence of magnetic field

被引：1

作者：

Dzhun, I. O. ^{[1
]}

Chechenin, N. G. ^{[1
]}

Dushenko, S. A. ^{[1
]}

Konstantinova, E. A. ^{[2
]}

机构：

[1] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Leninskie Gory 1-2, Moscow 119991, Russia

[2] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia

来源：

MAGNETISM AND MAGNETIC MATERIALS V | 2012年 / 190卷

关键词：

Ferromagnetic resonance; angular dependence; temperature dependence; unidirectional magnetic anisotropy; uniaxial magnetic anisotropy; exchange interactions; Neel temperature; blocking temperature;

D O I：

10.4028/www.scientific.net/SSP.190.93

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By measuring the angular dependence of ferromagnetic resonance field at room and low temperatures, it is demonstrated that the magnitude of magnetic field applied during magnetron deposition of Ta/F/AF/Ta structures, where F=Co, NiFe and AF=FeMn and IrMn, influences the uniaxial and unidirectional anisotropy, magnetization and the exchange bias blocking temperature. The deposition field effects on the bilayer structure are compared with the effects on a similar structure, but without antiferromagnetic layer. The exchange bias blocking temperature of investigated structures is found to be significantly lower than the Neel temperature of a bulk antiferromagnet. The origin of the observed effects is shortly discussed.

引用

页码：93 / +

页数：2

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