Mechanisms of spin-polarized current-driven magnetization switching.
نویسندگان
چکیده
The mechanisms of the magnetization switching of magnetic multilayers driven by a current are studied by including exchange interaction between local moments and spin accumulation of conduction electrons. It is found that this exchange interaction leads to two additional terms in the Landau-Lifshitz-Gilbert equation: an effective field and a spin torque. Both terms are proportional to the transverse spin accumulation and have comparable magnitudes.
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عنوان ژورنال:
- Physical review letters
دوره 88 23 شماره
صفحات -
تاریخ انتشار 2002