Interplay of disorder and magnetic field in the superconducting vortex state

Simple item page
dc.creatorLages, J.
dc.creatorSacramento, P. D.
dc.creatorTesanovic, Z.
dc.date2003-06-17
dc.date.accessioned2026-07-07T02:51:53Z
dc.date.available2026-07-07T02:51:53Z
dc.descriptionWe calculate the density of states of an inhomogeneous superconductor in a magnetic field where the positions of vortices are distributed completely at random. We consider both the cases of s-wave and d-wave pairing. For both pairing symmetries either the presence of disorder or increasing the density of vortices enhances the low energy density of states. In the s-wave case the gap is filled and the density of states is a power law at low energies. In the d-wave case the density of states is finite at zero energy and it rises linearly at very low energies in the Dirac isotropic case (α_D=t/Δ_0=1, where t is the hopping integral and Δ_0 is the amplitude of the order parameter). For slightly higher energies the density of states crosses over to a quadratic behavior. As the Dirac anisotropy increases (as Δ_0 decreases with respect to the hopping term) the linear region decreases in width. Neglecting this small region the density of states interpolates between quadratic and back to linear as α_D increases. The low energy states are strongly peaked near the vortex cores.
dc.description12 REVTeX pages, 15 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0306448
dc.identifierhttp://arxiv.org/abs/cond-mat/0306448
dc.identifierPhysical Review B 69, 094503 (2004)
dc.identifierdoi:10.1103/PhysRevB.69.094503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21634
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleInterplay of disorder and magnetic field in the superconducting vortex state
dc.typetext

Files

Collections

arXiv