Ultrafast switching of a spin valve with perpendicular anisotropy

被引：6
|
作者：
Weinberger, P. [1 ,2 ]
机构：
[1] Ctr Computat Nanosci, A-1010 Vienna, Austria
[2] NYU, Dept Phys, New York, NY 10003 USA
来源：
PHYSICAL REVIEW B | 2010年 / 81卷 / 10期
关键词：
REVERSAL;
D O I：
10.1103/PhysRevB.81.104417
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The switching properties of a spin valve with perpendicular anisotropy is investigated in terms of the fully relativistic screened Korringa-Kohn-Rostoker method, the corresponding Kubo-Greenwood equation of electric transport, and the Landau-Lifshitz-Gilbert equation. In excellent agreement with very recent experimental data, it is found that (a) the inverse of the switching time is linear with respect to the critical current, (b) the ratio of critical currents for switching from parallel (P) to antiparallel (AP) and from AP to P is about 2, and (c) the tiny magnetoresistance found in experiment is a consequence of the perpendicular anisotropy.
引用
收藏
页数：6
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