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- W4382140213 abstract "Understanding the rich physics of magnetization dynamics in perpendicular synthetic antiferromagnets (p-SAFs) is crucial for developing next-generation spintronic devices. In this work, we systematically investigate the magnetization dynamics in p-SAFs combining time-resolved magneto-optical Kerr effect (TR-MOKE) measurements with theoretical modeling. These model analyses, based on a Landau-Lifshitz-Gilbert approach incorporating exchange coupling, provide details about the magnetization dynamic characteristics including the amplitudes, directions, and phases of the precession of p-SAFs under varying magnetic fields. These model-predicted characteristics are in excellent quantitative agreement with TR-MOKE measurements on an asymmetric p-SAF. We further reveal the damping mechanisms of two procession modes co-existing in the p-SAF and successfully identify individual contributions from different sources, including Gilbert damping of each ferromagnetic layer, spin pumping, and inhomogeneous broadening. Such a comprehensive understanding of magnetization dynamics in p-SAFs, obtained by integrating high-fidelity TR-MOKE measurements and theoretical modeling, can guide the design of p-SAF-based architectures for spintronic applications." @default.
- W4382140213 created "2023-06-27" @default.
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- W4382140213 date "2023-06-26" @default.
- W4382140213 modified "2023-10-14" @default.
- W4382140213 title "Magnetization dynamics in synthetic antiferromagnets with perpendicular magnetic anisotropy" @default.
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- W4382140213 doi "https://doi.org/10.1103/physrevb.107.214438" @default.
- W4382140213 hasPublicationYear "2023" @default.
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