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Macrospin model to explain the absence of preswitching oscillations in magnetic tunnel junctions: Fieldlike spin-transfer torque

机译:用Macrospin模型来解释磁性隧道结中不存在预开关振荡:类似场的自传递扭矩

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摘要

We show that the absence of preswitching oscillations ("incubation delay") in magnetic tunnel junctions can be explained within the macrospin model by a sizable fieldlike component of the spin-transfer torque. It is further suggested that measurements of the voltage dependence of tunnel junction switching time in the presence of external easy axis magnetic fields can be used to determine the magnitude and voltage dependence of the fieldlike torque.
机译:我们表明,在磁隧道结中不存在预切换振荡(“孵育延迟”),可以通过自旋传递扭矩的相当大的场状分量来解释宏旋转模型内的情况。进一步建议,在存在外部易轴磁场的情况下,对隧道结切换时间的电压相关性的测量可以用于确定像场转矩的大小和电压相关性。

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