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arXiv 2304.09503cond-mat.mes-hallcond-mat.str-el
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磁盘中受限斯格明子晶体的热电效应

Thermoelectric effect of skyrmion crystal confined in a magnetic disk

Junnosuke Matsuki, Masahito Mochizuki

AI总结:

本文从理论上提出磁盘中受限旋转斯格明子晶体在温度梯度下可产生径向自旋动势,从而实现热到电的转换,为自旋电子学热电器件提供新思路。

摘要:

我们从理论上提出,在磁盘中受限的旋转斯格明子晶体可以通过温度梯度产生电压。我们发现,在温度梯度存在下,由扩散热磁振子电流诱导的斯格明子晶体旋转,通过与传导电子自旋的耦合在径向方向上产生自旋动势。在较低温度下,温度梯度越大,所产生的自旋动势幅度越大。所提出的现象可被用于基于自旋电子学的热电器件,以实现热到电的转换。

英文摘要:

We theoretically propose that an electric voltage can be generated by thermal gradient with a rotating skyrmion crystal confined in a magnetic disk. We find that the rotation of skyrmion crystal induced by diffusive thermal magnon currents in the presence of temperature gradient gives rise to spinmotive forces in the radial direction through coupling to conduction-electron spins. The amplitude of generated spinmotive force is larger for a larger temperature gradient at a lower temperature. The proposed phenomenon can be exploited as spintronics-based thermoelectric devices to realize the conversion of heat to electricity.

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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