Spin-orbit torque switching of ultralarge-thickness ferrimagnetic GdFeCo

被引：81

作者：

Roschewsky, Niklas ^{[1
]}

Lambert, Charles-Henri ^{[2
]}

Salahuddin, Sayeef ^{[2
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

[3] Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 2017年 / 96卷 / 06期

关键词：

MAGNETIC-ANISOTROPY;

D O I：

10.1103/PhysRevB.96.064406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on spin-orbit torque measurements in ferrimagnetic Gd-21(Fe90Co10)(79) films with bulk perpendicular magnetic anisotropy and thicknesses up to 30 nm. The dampinglike and fieldlike torques have been quantified using second harmonic Hall voltage detection. Both torques show an inverse linear dependence on the thickness that is indicative of the interfacial nature of the torques. The spin-Hall angle remains constant over the thickness range of 10 to 30 nm Gd-21(Fe90Co10)(79). Remarkably, we find that this interfacial torque is able to switch a 30-nm-thick Gd-21(Fe90Co10)(79) film with a reasonably large thermal stability of approximate to 100 k(B)T.

引用

页数：5

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