Micromagnetic study of auto-oscillation modes in spin-Hall nano-oscillators
Micromagnetic study of auto-oscillation modes in spin-Hall nano-oscillators
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DOI：
10.1063/1.4863660
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发表时间：
2014-01
影响因子：
4
通讯作者：
H. Ulrichs;V. Demidov;S. Demokritov
中科院分区：
文献类型：
--
作者：
H. Ulrichs;V. Demidov;S. Demokritov
本文对一种基于自旋-霍尔效应的自旋力矩纳米振荡器的磁化动力学进行了数值研究。我们的数值计算结果与实验观察到的行为吻合良好，并提供了实验观察到的主自振荡模式特征的详细信息。它们还阐明了仅在某些条件下实验观察到的二次自振荡模式的物理性质。
We present a numerical study of magnetization dynamics in a recently introduced spin torque nano-oscillator, whose operational principle relies on the spin-Hall effect—spin-Hall nano-oscillators. Our numerical results show good agreement with the experimentally observed behaviors and provide detailed information about the features of the primary auto-oscillation mode observed in the experiments. They also clarify the physical nature of the secondary auto-oscillation mode, which was experimentally observed under certain conditions only.