FePd薄盘纳米阵列中的集体磁化动力学
Collective magnetization dynamics in nano-arrays of thin FePd discs
摘要：
我们报告的正方形阵列的介观光盘，从铁钯合金薄膜制造的磁化动力学。利用铁磁共振测量和微磁模拟的动力学性能进行了探讨。所获得的光谱表现出的功能，从光盘之间的相互作用，具有明确的依赖于温度和外部施加的电场的方向。我们证明了测量光谱和计算光谱之间的定性一致性。此外，我们还计算了在含时磁场激发下自旋驻波的模式分布。由此产生的地图证实，出现在铁磁共振吸收光谱的功能源于温度和方向依赖盘间的相互作用。
英文摘要：
We report on the magnetization dynamics of a square array of mesoscopic discs, fabricated from an iron palladium alloy film. The dynamics properties were explored using ferromagnetic resonance measurements and micromagnetic simulations. The obtained spectra exhibit features resulting from the interactions between the discs, with a clear dependence on both temperature and the direction of the externally applied field. We demonstrate a qualitative agreement between the measured and calculated spectra. Furthermore, we calculated the mode profiles of the standing spin waves excited during a time-dependent magnetic field excitations. The resulting maps confirm that the features appearing in the ferromagnetic resonance absorption spectra originate from the temperature and directional dependent inter-disc interactions.
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