Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids

被引:75
作者
Bauer, GEW [1 ]
Tserkovnyak, Y
Huertas-Hernando, D
Brataas, A
机构
[1] Delft Univ Technol, Dept NanoSci, NL-2628 CJ Delft, Netherlands
[2] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA
关键词
D O I
10.1103/PhysRevB.67.094421
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electrical resistance of ferromagnetic/normal-metal (F/N) heterostructures depends on the nature of the junctions that may be tunnel barriers, point contacts, or intermetallic interfaces. For all junction types, the resistance of disordered F/N/F perpendicular spin valves as a function of the angle between magnetization vectors is shown to obey a simple universal law. The spin-current induced magnetization torque can be measured by the angular magnetoresistance of these spin valves. The results are generalized to arbitrary magnetoelectronic circuits.
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页数:4
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