Quasiballistic magnetization reversal.
نویسندگان
چکیده
We demonstrate a quasiballistic switching of the magnetization in a microscopic magnetoresistive memory cell. By means of time resolved magnetotransport, we follow the large angle precession of the free layer magnetization of a spin valve cell upon application of transverse magnetic field pulses. Stopping the field pulse after a 180 degrees precession rotation leads to magnetization reversal with reversal times as short as 165 ps. This switching mode represents the fundamental ultrafast limit of field induced magnetization reversal.
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ورودعنوان ژورنال:
- Physical review letters
دوره 90 1 شماره
صفحات -
تاریخ انتشار 2003