Damped gyromagnetic switching
Damped gyromagnetic switching
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阻尼旋磁开关
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
J. Mallinson
中科院分区：
文献类型：
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作者：
J. Mallinson
采用物理上合理的吉尔伯特阻尼，通过旋磁转矩方程解析求解了具有单轴磁晶和形状各向异性的单畴晶粒或颗粒的旋磁开关行为。唯一的限制是各向异性易轴和外加场共线。磁化翻转时间的解析解，然后被用来精确计算各种现象发生在脉冲电流带状线测试的磁记录存储介质。此外，在阻尼旋进的磁化极角和方位角之间的解析关系推导。
The gyromagnetic switching behavior of a single-domain grain or particle with uniaxial magnetocrystalline and shape anisotropy is solved analytically by the gyromagnetic torque equation using physically plausible Gilbert damping. The sole restriction is that the anisotropy easy axis and the applied field be collinear. The analytical solution for the magnetization switching time is then used to calculate precisely various phenomena which occur in pulsed-current stripline testing of magnetic recording storage media. Also, the analytic relationship between the polar and azimuthal angles of the magnetization during damped precession is derived.