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arXiv 2002.01989cond-mat.supr-concond-mat.mtrl-sci
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准一维系统作为高温超导体

Quasi-one-dimensional system as a high-temperature superconductor

T. T. Saraiva, P. J. F. Cavalcanti, A. Vagov, A. S. Vasenko, A. Perali, L. Dell'Anna, A. A. Shanenko

摘要:

众所周知,准一维超导体会受到对涨落的影响,对涨落会显著降低超导温度,甚至完全抑制任何相干行为。在这里,我们表明,耦合到一个强大的对凝聚体显着改变的情况。在这种情况下,准一维系统可以是一个高温超导体,它由接近于费米能级接近单粒子谱的下边缘的Lifshitz跃迁所控制。

英文摘要:

It is well-known that quasi-one-dimensional superconductors suffer from the pairing fluctuations that significantly reduce the superconducting temperature or even completely suppress any coherent behavior. Here we demonstrate that a coupling to a robust pair condensate changes the situation dramatically. In this case the quasi-one-dimensional system can be a high temperature superconductor governed by the proximity to the Lifshitz transition at which the Fermi level approaches the lower edge of the single-particle spectrum.

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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