2009/05/18 by Shaojing Li, Boris Livshitz, H.N. Bertram +4 · 1 citation
Physics and Astronomy · Materials Science · #Magnetic properties of thin films #Magnetic Properties and Applications #Magnetic Properties and Synthesis of Ferrites
paper · doi:10.1063/1.3133354
openalex publication_date 2009/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
Magnetic reversal in exchange-coupled composite elements under microwave fields is characterized by several unique properties including reduced reversal fields, microwave fields, microwave resonant frequencies, and reduced sensitivity to anisotropy distributions as compared to homogeneous elements. We find that reversal can occur in uniform and nonuniform regimes. The uniform regime is characterized by coherent spin precession enhancement by the microwave field. In the nonuniform regime domain walls in the soft layer mediate reversal and under linearly polarized microwave fields, can lead to a formation of localized reversal/nonreversal areas in the “applied field-frequency” phase plane.