Signatures of asymmetric and inelastic tunneling on the spin torque bias dependence
نویسندگان
چکیده
منابع مشابه
Anomalous bias dependence of spin torque in magnetic tunnel junctions.
We predict an anomalous bias dependence of the spin transfer torque parallel to the interface, Tparallel, in magnetic tunnel junctions, which can be selectively tuned by the exchange splitting. It may exhibit a sign reversal without a corresponding sign reversal of the bias or even a quadratic bias dependence. We demonstrate that the underlying mechanism is the interplay of spin currents for th...
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15 صفحه اولDependence of spin torque switching probability on electric current.
Dependence of the thermally assisted spin torque switching probability on the sweep electric current was investigated theoretically. The analytical expressions of the switching times for b = 1 and b = 2 are derived based on the rate equation, where b is the exponent of the current term in the switching rate. The switching current is approximately proportional to the temperature T and the logari...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2010
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.82.174420