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arXiv 1606.06338cond-mat.supr-con
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低维拓扑超导体中杂质诱导束缚态的渐近行为

Asymptotic behavior of impurity-induced bound states in low-dimensional topological superconductors

Vardan Kaladzhyan, Cristina Bena, Pascal Simon

摘要:

本文从理论上研究了二维和一维反常超导体中磁性杂质的Shiba束缚态的渐近行为。我们计算解析的局域态密度的空间依赖性与自旋极化与Shiba束缚态。我们发现,后者的数量表现出s波和不同类型的p波超导体之间的巨大差异。这些性质可以用自旋极化STM测量,因此提供了一种区分低维超导体中单线态和三线态配对的方法,以及一种估计这些系统中三线态配对幅度的方法。

英文摘要:

We study theoretically the asymptotic behavior of the Shiba bound states associated with magnetic impurities embedded in both 2D and 1D anomalous superconductors. We calculate analytically the spatial dependence of the local density of states together with the spin polarization associated with the Shiba bound states. We show that the latter quantity exhibits drastic differences between s-wave and different types of p-wave superconductors. Such properties, which could be measured using spin-polarized STM, offer therefore a way to discriminate between singlet and triplet pairing in low-dimensional superconductors, as well as a way to estimate the amplitude of the triplet pairing in these systems.

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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