Density of states in d-wave superconductors disordered by extended impurities

I Adagideli, DE Sheehy, PM Goldbart

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3 Citations (Scopus)


The low-energy quasiparticle states of a disordered d-wave superconductor are investigated theoretically. A class of such states, formed via tunneling between the Andreev bound states that are localized around extended impurities (and result from scattering between pair-potential lobes that differ in sign), is identified. Its (divergent) contribution to the total density of states is determined by taking advantage of connections with certain one-dimensional random tight-binding models. The states under discussion should be distinguished from those associated with nodes in the pair potential.
Original languageEnglish
Article number140512(R)
JournalPhysical Review B (Condensed Matter and Materials Physics)
Issue number14
Publication statusPublished - 1 Oct 2002
Externally publishedYes


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