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arXiv 1607.04720cond-mat.other
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对“室温玻色-爱因斯坦磁振子凝聚体中的超电流”一文的评论

Comment on "Supercurrent in a room temperature Bose-Einstein magnon condensate"

E. B. Sonin

摘要:

评论解释说,预印本arXiv:1503.0042没有提出有说服力的理论或实验论据,证明在室温钇铁石榴石磁性薄膜中制备的磁振子凝聚体中存在自旋超电流,因为作者没有检查磁有序材料中存在自旋超电流的已知标准。此外,他们没有将他们的超电流解释与通过自旋扩散传输的竞争和更现实的情况进行比较。

英文摘要:

The comment explains that the preprint arXiv:1503.0042 has not presented persuasive theoretical or experimental arguments of existence of spin supercurrents in a magnon condensate prepared in a room temperature yttrium-iron-garnet magnetic film because the authors did not check known criteria for existence of spin supercurrents in magnetically ordered materials. Also they did not compare their supercurrent interpretation with a competing and more realistic scenario of transport by spin diffusion.

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