Magnetization reversal through synchronization with a microwave
|Authors||Sun, Z. Z.
Wang, X. R.
|Source||PHYSICAL REVIEW B, v. 74, (13), 2006, OCT|
|Summary||Based on the Landau-Lifshitz-Gilbert equation, it can be shown that a circularly polarized microwave can reverse the magnetization of a Stoner particle through synchronization. In comparison with magnetization reversal induced by a static magnetic field, it can be shown that when a proper microwave frequency is used the minimal switching field is much smaller than that of precessional magnetization reversal. A microwave needs only to overcome the energy dissipation of a Stoner particle in order to reverse magnetization, unlike the conventional method with a static magnetic field where the switching field must be of the order of magnetic anisotropy.|
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