Interlayer Exchange Coupling Effect of L10 CoPt Based Exchange Coupled Composite Media
In this work, effects of exchange coupling of soft magnetic layer on switching field and magnetization reversal behaviour of CoPt–SiO2(soft)/CoPt–SiO2(hard) exchange coupled media were investigated. With increasing the thickness of the soft layer, both the coercivity and magnetization squareness of composite media decreased. Soft layer thickness 4 nm and below was more effective to significantly reduce the switching field than that above 4 nm. More incoherent switching behavior was observed with increasing soft layer thickness.
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Document Type: Research Article
Publication date: 2011-03-01
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