Interlayer Exchange Coupling Effect of L10 CoPt Based Exchange Coupled Composite Media
Abstract: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.
Document Type: Research Article
Publication date: 2011-03-01
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