Abstract

Magnetostriction constants λ 111 and λ 100 were estimated for [111] oriented polycrystalline PdCo and PtCo alloy films and multilayer films (MLs) from the induced anisotropy. It was found that the magnetostriction constants of Pd/Co and Pt/Co MLs are not determined by the magnetostriction constants of fcc Co, but are strongly affected by those of PdCo and PtCo alloys. This result implies the effect of electron hybridization and/or alloy formation at the interface.

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