Exchange-Bias-Like Effect In L1(0) (111) Fept Based Pseudo Spin Valves
INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009)(2010)
摘要
The coupling between hard FePt/CoFe and soft CoFe/NiFe layers through a Cu spacer has been studied in L1(0) (111) FePt(20)/CoFe(1.5)/Cu(3.5or4.5)/CoFe(2)/NiFe(3) (in nm) pseudo spin valves. The soft layer hysteresis loops exhibit clear shifts in the field axis (exchange bias-like) and a marked coercivity enhancement. The thickness of the Cu layer or the interface roughness influence the exchange bias properties of the systems. This interlayer coupling arises from the competition between dipolar and RKKY interactions between the layers.
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关键词
hysteresis loop,exchange bias
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