扭转振荡器中机械辅助电流诱导的磁矩开关
Mechanically-Assisted Current-Induced Switching of the Magnetic Moment in a Torsional Oscillator
摘要：
切换的纳米磁体中的磁矩的方向进行了研究内的修改Slonczewski的模型，允许扭转振荡的磁体。我们发现，后者可能会抑制或协助磁化切换，这取决于参数。三个制度已被研究：扭转振荡单独的开关，开关的自旋极化电流与扭转振荡允许，和磁化开关的电流与机械扭曲相结合。我们表明，切换的磁矩是可能的，在所有三种情况下，并允许扭转振荡的磁铁可能有一定的优势，应用。相图计算显示的范围内的开关所需的参数。
英文摘要：
Switching of the direction of the magnetic moment in a nanomagnet is studied within a modified Slonczewski's model that permits torsional oscillations of the magnet. We show that the latter may inhibit or assist the magnetization switching, depending on parameters. Three regimes have been studied: the switching by torsional oscillations alone, the switching by the spin-polarized current with torsional oscillations permitted, and the magnetization switching by the current combined with the mechanical twist. We show that switching of the magnetic moment is possible in all three cases and that allowing torsional oscillations of the magnet may have certain advantages for applications. Phase diagrams are computed that show the range of parameters required for the switching.
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