$Π$ à la node: disordered d-wave superconductors in two dimensions for the random masses

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dc.creatorHirschfeld, P. J.
dc.creatorAtkinson, W. A.
dc.date2001-08-29
dc.date.accessioned2026-07-07T02:42:34Z
dc.date.available2026-07-07T02:42:34Z
dc.descriptionWe review work on the problem of disorder in the 2D d-wave superconducting state, and show that the symmetries of the normal state and the disorder distribution are vital for understanding the low-energy behavior. Most previous theoretical results for the density of states (DOS) are reconciled by a combination of exact numerical solutions of the Bogoliubov-de Gennes equations and weak localization calculations, which suggest that a novel diffusive mode with momentum $(π,π)$ is responsible for a divergence of the DOS in the globally particle-hole symmetric case. We note briefly that the simple problem of a disordered tight-binding band of normal electrons displays some similar effects, which have been overlooked in the literature. Finally, in the physically realistic case of binary alloy disorder, no particle-hole symmetry, and an order parameter which is supressed around each impurity site, a power law with nonuniversal exponent is predicted.
dc.descriptionSubmitted to J. Low Temp. Phys. Festschrift Volume for P. Wölfle's 60th birthday. 20pp., 7 Figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0108487
dc.identifierhttp://arxiv.org/abs/cond-mat/0108487
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18193
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.title$Π$ à la node: disordered d-wave superconductors in two dimensions for the random masses
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