Reversal of Domain Wall Motion in Perpendicular Magnetized Tb-Fe-Co Nanowires

被引：3

作者：

Do, Bang ^{[1
]}

Awano, Hiroyuki ^{[1
]}

机构：

[1] Toyota Technol Inst, Tempaku Ku, Nagoya, Aichi 4688511, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 07期

关键词：

Domain wall motion; perpendicular magnetic anisotropy; spin-Hall effect; spin-transfer torque; Tb-Fe-Co; MULTILAYERS; DYNAMICS;

D O I：

10.1109/TMAG.2013.2252003

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We studied the motion of magnetic domain walls (DWs) in SiO2/TbFeCo/Pt (asymmetric) and Pt/TbFeCo/Pt (symmetric) nanowires. The reversed DW motion was observed in the asymmetric wire at zero field and room temperature. The reversed DW motion was attributed to the structural inversion asymmetry-induced spin-orbit torques from Pt/TbFeCo interface and Pt layer of the asymmetric wire. The DW velocity sign was again reversed when the current density is larger than 1.52 x 10(11) A/m(2) which corresponds to threshold of Walker-breakdown current density.

引用

页码：4390 / 4393

页数：4

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