Antiferromagnetic layer thickness dependence of the IrMn/Co exchange-bias system

被引:187
作者
Ali, M [1 ]
Marrows, CH
Al-Jawad, M
Hickey, BJ
Misra, A
Nowak, U
Usadel, KD
机构
[1] Univ Leeds, ES Stoner Lab, Dept Phys & Astron, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Duisburg, D-47048 Duisburg, Germany
关键词
D O I
10.1103/PhysRevB.68.214420
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A study of exchange bias in IrMn/Co systems is presented. Temperature and thickness dependence studies have revealed nonmonotonic behavior in both exchange bias field and coercivity with both variables. In particular the exchange bias field shows a peak for low IrMn thicknesses that is suppressed at temperatures higher than about 200 K. Calculations using the domain state model of exchange biasing are able to describe all the features seen in the experimental data.
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页数:7
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