首页> 外文会议>Symposium on Magnetic Ultrathin Films,Multilayers and Surface --1997 March 31-April 4,1997, San Francisco, California, U.S.A >Anisotropic local structure of Co-Pd alloy and Pd/Co multilayer films having perpendicular magnetic anisotropy
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Anisotropic local structure of Co-Pd alloy and Pd/Co multilayer films having perpendicular magnetic anisotropy

机译:具有垂直磁各向异性的Co-Pd合金和Pd / Co多层膜的各向异性局部结构

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摘要

Anisotropic short-range structure in Co-Pd alloy and Pd/Co multilayer films is determined using polarized Co K-edge extended x-ray absorption fine structure. A local modulation of Co fraction exists along the growth direction in the alloy films. Pd underlayer and Pd spacers alternated with the alloy layer influence an effective strain anisotropy. Pd/Co multilayers have an alloy-like region near nominal interfaces by diffuse interface. Pd spacers in the multilayer play a role in coherency strain rather than on broken symmetry of Co atoms. Local structural anisotropy of both strain and chemical environment contribute to the perpendicular magnetic anisotropy observed in these films.
机译:使用极化的Co K边缘扩展x射线吸收精细结构确定了Co-Pd合金和Pd / Co多层膜中的各向异性短程结构。在合金膜中,沿着生长方向存在Co的局部调制。与合金层交替的Pd底层和Pd隔离层会影响有效的应变各向异性。 Pd / Co多层通过扩散界面在标称界面附近具有类似合金的区域。多层中的Pd间隔物在相干应变中起作用,而不是在破坏Co原子对称性上起作用。应变和化学环境的局部结构各向异性导致了在这些膜中观察到的垂直磁各向异性。

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