In-plane field-driven crossover in the spin-torque mechanism acting on magnetic domain walls in Co/Ni

被引：15
|
作者：
Ueda, Kohei [1 ]
Kim, Kab-Jin [1 ]
Taniguchi, Takuya [1 ]
Tono, Takayuki [1 ]
Moriyama, Takahiro [1 ]
Ono, Teruo [1 ]
机构：
[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
来源：
PHYSICAL REVIEW B | 2015年 / 91卷 / 06期
基金：
日本学术振兴会;
关键词：
WEAK FERROMAGNETISM; MOTION; NANOWIRES;
D O I：
10.1103/PhysRevB.91.060405
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the in-plane field dependence of current-induced magnetic domain wall motion in asymmetric Co/Ninano wires. The application of an in-plane field changed the direction of domain wall motion. In a systematic study, by varying the magnetic layer thickness, we show that the in-plane field induces a crossover from spin Hall torque to adiabatic spin-transfer torque for the magnetic domain wall motion. Furthermore, the dependence of the threshold current density on the in-plane longitudinal field provides a way for determining the strength of the Dzyaloshinskii-Moriya interaction.
引用
收藏
页数：5
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