论文标题

磁性Berezinskii-Kosterlitz的运输签名 - 无与伦比的过渡

Transport signature of the magnetic Berezinskii-Kosterlitz-Thouless transition

论文作者

Kim, Se Kwon, Chung, Suk Bum

论文摘要

由2D磁性的最新实验进步的动机,我们理论上研究了跨贝雷津氏剂温度下的2D Easy Plane磁铁中的自旋传输,该二元性映射到2+1D电子磁性的二元性映射,并说明了2+1D电子磁性,该二重性映射到2+1D电子磁性,并说明了旋转有限的生命周期。特别是,我们发现自旋的不保守在整个BKT转变之间产生了独特的特征,并且自旋电流腐烂,距离下方(以上)(上)(上)过渡。在拟议的实验中,可以检测到这是nips $ _3 $和crcl $ _3 $的实验。

Motivated by recent experimental progress in 2D magnetism, we theoretically study spin transport in 2D easy-plane magnets at finite temperatures across the Berezinskii-Kosterlitz-Thouless (BKT) phase transition, by developing a duality mapping to the 2+1D electromagnetism with the full account of spin's finite lifetime. In particular, we find that the non-conservation of spin gives rise to a distinct signature across the BKT transition, with the spin current decaying with distance power-law (exponentially) below (above) the transition; this is detectable in the proposed experiment with NiPS$_3$ and CrCl$_3$.

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