Increase in ferromagnetic/antiferromagnetic exchange bias due to a reduction of the interfacial exchange interaction

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作者：
机构：
[1] Ernult, F.
[2] Dieny, B.
[3] Billard, L.
[4] Lançon, F.
[5] Regnard, J.R.
来源：
Ernult, F. | 1600年 / American Institute of Physics Inc.卷 / 94期
关键词：
Anisotropy - Coercive force - Computer simulation - Gold - Magnetic hysteresis - Magnetization - Magnetron sputtering - Nickel compounds;
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摘要：
The effect of the location of nonmagnetic impurities (Au) inserted in the NiO layer of NiO/Co bilayers on the exchange bias was experimentally investigated. The inserted Au layer consists of a discontinuous plane of Au islands. The experiments were interpreted in terms of a reduced dragging of the NiO magnetization during Co magnetization reversal. An initial increase in the exchange bias field is observed when the Au layer is introduced at the Co/NiO interface.
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