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We investigated the dependence of magnetic properties for Co/Pt100–x Pdx multilayer thin films on the concentration in the Pt‐Pd alloy layers. Perpendicular magneto anisotropy constant Kp increases with increasing Pt concentration in the Pt‐Pd layer, since the interface anisotropy between the Co and the Pt‐Pd layers is enhanced by the increase of the Pt concentration. The Curie temperature and the temperature dependence of Kp for the specimens increase with increasing the amount of Pt in the Pt‐Pd layer. These results may indicate that the lattice distortion of the Co layer caused by the interface from the Pt‐Pd layer becomes larger and the increase of the distortion enhances the interface anisotropy, since the lattice misfit between the Pt‐Pd and the Co increases with increasing the Pt concentration. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Inaba et al. (2007) studied this question.
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