Time dependence of spin accumulation and magnetoresistance in magnetic multilayers

被引:25
作者
Zhang, S [1 ]
Levy, PM
机构
[1] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
[2] NYU, Dept Phys, New York, NY 10003 USA
来源
PHYSICAL REVIEW B | 2002年 / 65卷 / 05期
关键词
D O I
10.1103/PhysRevB.65.052409
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We derive and solve the equations that determine the time dependence of the spin accumulation attendant to driving a current across a magnetic multilayer, The time scales with the spin-flip relaxation time for the multilayer, which is of the order of picoseconds. As this is much shorter than the time it takes for current-induced switching of magnetic layers, the lack of spin accumulation does not seem to be a factor for the long switching times recently observed.
引用
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页码:1 / 4
页数:4
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