论文标题

通过磁化动力学对声子进行单向泵送

Unidirectional Pumping of Phonons by Magnetization Dynamics

论文作者

Zhang, Xiang, Bauer, Gerrit E. W., Yu, Tao

论文摘要

我们提出了一种基于磁性磁波(SAWS)通过磁截图来控制表面声子通过弱磁场传输的方法。我们预测,纳米线在介电膜的顶部注射锯锯的磁化动力学,其角度相反的方向相反。两个平行的纳米线形成了一个音调腔,在磁共振上泵一个单向锯,电流到一半的底物中。

We propose a method to control surface phonon transport by weak magnetic fields based on the pumping of surface acoustic waves (SAWs) by magnetostriction. We predict that the magnetization dynamics of a nanowire on top of a dielectric films injects SAWs with opposite angular momenta into opposite directions. Two parallel nanowires form a phononic cavity that at magnetic resonances pump a unidirectional SAW current into half of the substrate.

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