Exchange Bias of the Fe/Fe3O4 Coated Ag/Hollow Glass Microspheres
ADVANCED DEVELOPMENT IN AUTOMATION, MATERIALS AND MANUFACTURING(2014)
Abstract
This paper presents an investigation of the exchange bias of the Fe/Fe3O4 layer deposited on the Ag/hollow glass microspheres. The results show that exchange bias is affected by different thickness of Fe3O4 layer which is caused by different reaction time. The exchange bias field (H-E) increases gradually with increasing reaction time, and achieves maximum value when the reaction time reaches 30min; after that, it decreases. It is also found that the changes of exchange bias field (HE) are proposed to the frozen interfacial spins and the structural lattice disorder
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Key words
Exchange bias,Fe/Fe3O4 layer,Frozen interfacial spins
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