Layer thickness dependence of current induced effective fields in ferromagnetic multilayers
Layer thickness dependence of current induced effective fields in ferromagnetic multilayers
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DOI：
10.1063/1.4914897
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发表时间：
2015-03
影响因子：
3.2
通讯作者：
M. Kawaguchi;T. Moriyama;T. Koyama;D. Chiba;T. Ono
中科院分区：
文献类型：
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作者：
M. Kawaguchi;T. Moriyama;T. Koyama;D. Chiba;T. Ono
本文报道了电流感应有效场与铁磁层厚度的关系。旋转磁场的霍尔测量结果表明，横向和垂直有效场与每面积s的磁矩m的逆成线性关系，这意味着这两个有效场都可能源于自旋角动量传递。然而，在m/S = 0时横场的非零截距表明，非磁化效应，如Rashba效应，可能有助于横场的形成。
We report the relation between current induced effective fields and ferromagnetic layer thickness. Hall measurements with rotating magnetic field show that the transverse and perpendicular effective fields have linear relations to the inverse of the magnetic moment m per area S. The results imply that both of these effective fields may originate from spin angular momentum transferring. However, the non-zero intercept of the transverse field at m/S = 0 implies that magnetization independent effects, such as Rashba effect, may contribute to transverse field.