Correlation between perpendicular exchange bias and magnetic anisotropy in IrMn/[Co/Pt]n and [Pt/Co]n/IrMn multilayers -: art. no. 063907

被引：50

作者：

van Dijken, S ^{[1
]}

Moritz, J ^{[1
]}

Coey, JMD ^{[1
]}

机构：

[1] Trinity Coll Dublin, SFI Trinity Nanosci Lab, Dept Phys, Dublin 2, Ireland

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 06期

基金：

爱尔兰科学基金会;

关键词：

D O I：

10.1063/1.1861964

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Perpendicular exchange bias has been observed for IrMn/[Co/Pt](n) and [Pt/Co](n)/IrMn multilayers in the as-deposited state. The exchange bias field is largest when the IrMn film is grown on magnetically saturated Co/Pt multilayers (8.12 mT for n=3), whereas it is considerably smaller when domain formation in the IrMn film occurs before Co/Pt deposition (3.30 mT for n=3). After annealing at 220 degrees C in an out-of-plane magnetic field the perpendicular exchange bias field and magnetic anisotropy are considerably larger for the Co/Pt multilayers with an IrMn film at the bottom. The apparent correlation between bias and anisotropy is explained by the dependence of the perpendicular exchange bias field on the orientation of the Co spins near the Co/IrMn interface. (C) 2005 American Institute of Physics.

引用

页数：4

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