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arXiv 1710.04413cond-mat.supr-con
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与磁绝缘体接触的超导体中的Yu-Shiba-Rusinov带

Yu-Shiba-Rusinov bands in superconductors in contact with a magnetic insulator

Wolfgang Belzig, Detlef Beckmann

摘要:

超导体-铁磁体异质结构由于与库珀对与磁化强度的自旋相关相互作用有关的许多现象而引起人们的兴趣。在这里,我们解决的磁绝缘体的超导体的状态密度的基础上最近开发的边界条件强自旋相关的接口的影响。我们表明,边界的磁性绝缘体有类似的效果,如磁性杂质的存在。特别是,我们发现,强散射局域自旋导致的Shiba带的形成的杂质效应可以映射到边界问题。

英文摘要:

Superconductor-Ferromagnet (SF) heterostructures are of interest due to numerous phenomena related to the spin-dependent interaction of Cooper pairs with the magnetization. Here we address the effects of a magnetic insulator on the density of states of a superconductor based on a recently developed boundary condition for strongly spin-dependent interfaces. We show that the boundary to a magnetic insulator has a similar effect like the presence of magnetic impurities. In particular we find that the impurity effects of strongly scattering localized spins leading to the formation of Shiba bands can be mapped onto the boundary problem.

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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