Current-induced modulation of coercive field in the ferromagnetic oxide SrRuO $_{3}$

Yamanouchi, Michihiko*; Oyamada, Tatsuro*; Sato, Koichi*; Ota, Hiromichi*; Ieda, Junichi

We investigated the coercive field $H_{c}$ for Domain Wall (DW) motion as a function of the current in the ferromagnetic oxide SrRuO $_{3}$ , a model system with narrow DWs for fabricating high-density spintronics devices. The DW is moved by in the direction of the current, and $H_{c}$ is modulated linearly in . This linear relationship is consistent with an effective magnetic field $H_{eff}$ driving the DW. The direction of DW motion and the magnitude of $H_{eff}$ are well described by a model based on the field-like torque arising from the spin relaxation of conduction electrons in the DW.

Language	:	English
Journal	:	IEEE Transactions on Magnetics
Volume	:	55
Number	:	7
Pages	:	p.1400604_1 - 1400604_4
Publication Year/Month	:	2019/07
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Paper URL	:	https://doi.org/10.1109/TMAG.2019.2894897
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Keywords	:	電流誘起磁壁移動; 強磁性酸化物; 磁壁ピンニング
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Registration No. : AA20180376
JAEA Abstracts No. : 47001302
Paper Submission No. : 21933

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