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Magnetization reversal through synchronization with a microwave

Authors Sun, Z.Z.
Wang, X.R.
Issue Date 2006
Source Physical Review B , v. 74, (13), October 2006, Article number 132401
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.
ISSN 1098-0121
Rights © 2006 American Physical Society
Language English
Format Article
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