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Magnetization reversal through synchronization with a microwave

Z. Z. Sun·X. R. Wang
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Abstract

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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Z. Z. Sun, X. R. Wang. 2006-04-01. Magnetization reversal through synchronization with a microwave. https://doi.org/10.1103/physrevb.74.132401

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