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arXiv 2104.03014cond-mat.supr-con
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超导凝聚体的逆法拉第效应

Inverse Faraday Effect for Superconducting Condensates

S. V. Mironov, A. S. Mel'nikov, I. D. Tokman, V. Vadimov, B. Lounis, A. I. Buzdin

摘要:

超导凝聚体中的库珀对在圆极化电磁辐射的作用下获得了与温度有关的直流磁矩。在超流体唯象动力学理论的最简单版本,即含时的Ginzburg-Landau(GL)模型中研究了这种逆法拉第效应的机制。光感生磁矩的强烈影响的非耗散振荡的贡献超导序参量动力学出现由于GL弛豫时间的非零虚部。后一个量与超导状态下的霍尔效应的相关性允许建立直接和逆法拉第现象之间的联系。

英文摘要:

The Cooper pairs in superconducting condensates are shown to acquire a temperature-dependent dc magnetic moment under the effect of the circularly polarized electromagnetic radiation. The mechanisms of this inverse Faraday effect are investigated within the simplest version of the phenomenological dynamic theory for superfluids, namely, the time-dependent Ginzburg-Landau (GL) model. The light-induced magnetic moment is shown to be strongly affected by the nondissipative oscillatory contribution to the superconducting order parameter dynamics which appears due to the nonzero imaginary part of the GL relaxation time. The relevance of the latter quantity to the Hall effect in superconducting state allows to establish the connection between the direct and inverse Faraday phenomena.

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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