类场力矩引起的大幅度自旋霍尔振荡
Large Amplitude Spin-Hall Oscillations due to Field-like Torque
摘要：
在没有极化器和外场的情况下，在具有两个垂直面内易磁化轴的铁磁层中，在存在类场力矩的情况下，发现了大振幅的自旋霍尔振荡。的分析研究证实了振荡的可能性，在存在的类场转矩。研究表明，电流可使振荡频率在2 ~ 80 GHz范围内调谐，类场力矩可使振荡频率提高。此外，还观察到电流和类场转矩对频率以及Q因子的增强。
英文摘要：
Large amplitude spin-Hall oscillations are identified in a ferromagnetic layer with two perpendicular in-plane easy axis in the presence of field-like torque without any polarizer and external field. The analytical study confirms the possibility of oscillations in the presence of field-like torque. The investigation shows that the oscillation frequency can be tuned from 2 GHz to 80 GHz by current and enhanced by field-like torque. Further, the enhancement of frequency along with the Q-factor by current and field-like torque is also observed.
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