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arXiv 1806.07092cond-mat.mes-hall
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定域分子自旋的动力学交换和相致翻转

Dynamical exchange and phase induced switching of a localized molecular spin

Henning Hammar, Jonas Fransson

摘要:

利用广义自旋运动运动方程研究了在外加电压脉冲作用下局域分子自旋的动力学行为。该方法采用了各向异性场,非平衡条件,和非绝热动力学。通过施加时间长度为$τ$的电压脉冲,观察到局部自旋的重复性$4π$周期性切换。这种开关现象可以用动力学交换相互作用、内部瞬态场和作用于局域自旋矩的自相互作用来解释。

英文摘要:

The dynamics of a localized molecular spin under the influence of external voltage pulses is addressed using a generalized spin equation of motion. The approach incorporates anisotropic fields, non-equilibrium conditions, and non-adiabatic dynamics. By application of a voltage pulse of temporal length $τ$, a recurring $4π$-periodic switching of the localized spin is observed. The switching phenomena can be explained by dynamical exchange interactions, internal transient fields, and self-interactions acting on the localized spin moment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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