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Electric transport properties of Pt/Permalloy bilayers in the presence of an external magnetic field

机译：在外部磁场存在下Pt /坡莫合金双层的电输运性质

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A recent experimental study of the electric properties of Pt/Permalloy bilayers based on a simultaneous application of an in-plane microfrequency current and an external magnetic field is simulated on a fully relativistic ab initio level by considering the resistivity as an implicit function of the free energy. It is found that the oscillations detected experimentally are caused by the different behavior of out-of-plane and in-plane resistivities in the vicinity of that value of the free energy that corresponds to the resonant field induced by the applied current. A necessary precondition for such oscillations is a sizeable perpendicular anisotropy, which is not the case in systems consisting only of Permalloy. It is shown that the observed phenomenon is essentially an interface effect.View full textDownload full textKeywordsanisotropic properties, electrical properties, electrical transport, interfaces, magnetic anisotropy, spin dynamics, magnetic films, magnetic multilayers, spintronicsRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2011.640644
机译：通过将电阻率视为自由的隐含函数，在完全相对论的从头水平上模拟了基于平面内微电流和外部磁场的同时施加的Pt /坡莫合金双层电性能的最新实验研究。能源。可以发现，实验检测到的振荡是由与所施加电流感应的共振场相对应的自由能值附近的面外和面内电阻率的不同行为引起的。这种振荡的必要前提是相当大的垂直各向异性，而在仅由坡莫合金组成的系统中则不是这样。结果表明，观察到的现象本质上是一种界面效应。查看全文下载关键词各向异性性能，电性能，电传输，界面，磁各向异性，自旋动力学，磁性膜，磁性多层体，自旋电子学弗朗西斯在线”，services_compact：“ citeulike，netvibes，twitter，technorati，美味，linkedin，facebook，stumbleupon，digg，google，更多”，发布号：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/09500839.2011.640644

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