Pauli-limited upper critical field in dirty d-wave superconductors

Simple item page
dc.creatorVorontsov, A. B.
dc.creatorVekhter, I.
dc.creatorGraf, M. J.
dc.date2008-06-15
dc.date.accessioned2026-07-07T10:17:53Z
dc.date.available2026-07-07T10:17:53Z
dc.descriptionWe calculate the Pauli-limited upper critical field and the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) instability for {\it dirty} d-wave superconductors within the quasiclassical theory using the self-consistent $\hat{t}$-matrix approximation for impurities. We find that the phase diagram depends sensitively on the scattering rate and phase shift of nonmagnetic impurities. The transition into the superconducting state is always second order for weak (Born) scattering, while in the unitarity (strong) scattering limit a first-order transition into both uniform and spatially modulated superconducting states is stabilized. Contrary to general belief, we find that the FFLO phase is robust against disorder and survives impurity scattering equivalent to a $T_c$ suppression of roughly 40%. Our results bear on the search of FFLO states in heavy-fermion and layered organic superconductors.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0806.2445
dc.identifierhttp://arxiv.org/abs/0806.2445
dc.identifierPhys. Rev. B v.78 p.180505(R) 2008
dc.identifierdoi:10.1103/PhysRevB.78.180505
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174007
dc.subjectSuperconductivity
dc.titlePauli-limited upper critical field in dirty d-wave superconductors
dc.typetext

Files

Collections

arXiv