Temperature dependence of spin-orbit effective fields in Pt/GdFeCo bilayers
Temperature dependence of spin-orbit effective fields in Pt/GdFeCo bilayers
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DOI：
10.1063/1.4985436
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发表时间：
2017-06-12
影响因子：
4
通讯作者：
Ono, Teruo
中科院分区：
文献类型：
--
作者：
Ham, Woo Seung;Kim, Sanghoon;Ono, Teruo
在Pt/GdFeCo双层膜中进行谐波霍尔测量，以量化在各种温度下（高于和低于磁化补偿温度（T-M））由自旋轨道扭矩产生的有效场。我们发现，阻尼类扭矩迅速增加T-M附近的GdFeCo，这是由于在净磁矩的减少。此外，最重要的是，由此产生的自旋霍尔效率在整个温度范围内是恒定的。出版社：AIP Publishing
Harmonic Hall measurements were performed in Pt/GdFeCo bilayers to quantify the effective field resulting from the spin-orbit torque at various temperatures, both above and below the magnetization compensation temperature (T-M). We found that the damping-like torque rapidly increased near the T-M of the GdFeCo, which was attributed to a reduction in the net magnetic moment. Moreover, most importantly, the resulting spin Hall efficiency turned out to be constant across the temperature range. Published by AIP Publishing.