Current-induced domain wall motion attributed to spin Hall effect and Dzyaloshinsky–Moriya interaction in Pt/GdFeCo (100 nm) magnetic wire

Current-induced domain wall motion attributed to spin Hall effect and Dzyaloshinsky–Moriya interaction in Pt/GdFeCo (100 nm) magnetic wire
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Pt/GdFeCo (100 nm) 磁线中自旋霍尔效应和 Dzyaloshinsky-Moriya 相互作用导致的电流感应畴壁运动

DOI:
10.7567/jjap.55.07mc02
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发表时间:
2016
影响因子:
1.5
通讯作者:
H. Awano
H. Awano
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Y. Kurokawa;M. Kawamoto;H. Awano

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我们研究了Pt/GdFeCo双层线中电流诱导的畴壁运动(CIDWM),其中GdFeCo层的厚度为110和150 nm。我们发现Pt/GdFeCo导线中CIDWM的方向与电流的流动方向相同。畴壁的速度取决于面内磁场。这些结果表明,Pt/GdFeCo导线中沿电流方向的CIDWM可能归因于自旋霍尔效应和Dzyaloshinsky-Moriya相互作用。通常,这些效应不会出现在粗磁线中,因为它们有效地发生在重金属和磁层的界面上。因此,这些结果是有趣的现象,因为它们可能表明Pt/GdFeCo线中的自旋霍尔效应和Dzyaloshinsky-Moriya相互作用具有异常的远程影响。
We investigated the current-induced domain wall motion (CIDWM) in Pt/GdFeCo bilayer wires where the thicknesses of the GdFeCo layer are 110 and 150 nm. We found that the direction of CIDWM in the Pt/GdFeCo wires is the same as the current flow direction. The velocity of the domain wall depends on the in-plane magnetic field. These results indicate that the CIDWM along the current direction in the Pt/GdFeCo wires is probably attributed to the spin Hall effect and Dzyaloshinsky–Moriya interaction. Generally, these effects do not appear in thick magnetic wires because they effectively occur at the interfaces of a heavy metal and magnetic layers. Therefore, these results are interesting phenomena because they probably suggest that the spin Hall effect and Dzyaloshinsky–Moriya interaction in the Pt/GdFeCo wire have an anomalously long-range influence.
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发表时间: 2015-03-15
影响因子: 38.3
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