Effective reduction of the coercivity for Co${}_{72}$Pt${}_{28}$ thin film by exchange coupled Co${}_{81}$Ir${}_{19}$ soft layer with negative magnetocrystalline anisotropy

Juanying Jiao, Tianyong Ma, Zhiwei Li +4

We report on the investigation of coercivity changes of the Co${}_{72}$Pt${}_{28}$/Co${}_{81}$Ir${}_{19}$ exchange-coupled composite (ECC) media with negative soft-layer (SL) magnetocrysta…