论文标题
铁磁体中的营养共振
Nutation Resonance in Ferromagnets
论文作者
论文摘要
理论上研究了铁磁体中磁化的惯性动力学。微波激发时的分析派生动态响应显示了两个峰：铁磁和营养共振。磁性营养共振的频率和线宽的确切分析表达式是根据惯性landau-lifshitz-gilbert方程确定的频率相关性的。研究表明，螺母线宽对吉尔伯特进动阻尼的依赖性最小，随着施加的磁场的增加而变得更具表现力。
The inertial dynamics of magnetization in a ferromagnet is investigated theoretically. The analytically derived dynamic response upon microwave excitation shows two peaks: ferromagnetic and nutation resonances. The exact analytical expressions of frequency and linewidth of the magnetic nutation resonance are deduced from the frequency dependent susceptibility determined by the inertial Landau-Lifshitz-Gilbert equation. The study shows that the dependence of nutation linewidth on the Gilbert precession damping has a minimum, which becomes more expressive with increase of the applied magnetic field.
