论文标题
旋转磁磁分叉的悬浮铁磁粒子
Gyromagnetic bifurcation in a levitated ferromagnetic particle
论文作者
论文摘要
我们检查了微波辐照下由铁磁共振引起的悬浮磁粒子的机械旋转。我们表明，当旋转频率与微波频率相当时，通过分叉出现了两个稳定的解决方案。这种现象起源于巴内特和爱因斯坦 - 戴haas效应的共存。我们还揭示了该测量对自旋旋转耦合的强度敏感。我们的工作提供了一个平台，用于访问从旋转到宏观旋转的微观放松过程。
We examine the mechanical rotation of a levitated magnetic particle that is induced by ferromagnetic resonance under microwave irradiation. We show that two stable solutions appear in a certain range of parameters by bifurcation when the rotation frequency is comparable to the microwave frequency. This phenomenon originates from the coexistence of the Barnett and the Einstein-de Haas effects. We also reveal that this measurement is sensitive to the strength of the spin-rotation coupling. Our work provides a platform for accessing a microscopic relaxation process from spin to macroscopic rotation.
