Dressed behavior of the quasiparticles lifetime in the unitary limit of two unconventional superconductors

We compare the quasiparticle lifetime behavior in the unitary limit of two unconventional superconductors dressed by non-magnetic impurity scattering to differentiate an anomalous functional behavior in its shape when the disorder concentration is changed in a triplet paired model with respect to th...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Contreras, P, Osorio, Dianela, E Yu Beliayev
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 08.09.2021
Subjects
Brillouin zones
Conductors
Crystal lattices
Elastic scattering
Elementary excitations
Parameterization
Physics - Computational Physics
Physics - Disordered Systems and Neural Networks
Physics - Superconductivity
Unconventional superconductors
Online AccessGet full text

Cover

More Information
Summary:We compare the quasiparticle lifetime behavior in the unitary limit of two unconventional superconductors dressed by non-magnetic impurity scattering to differentiate an anomalous functional behavior in its shape when the disorder concentration is changed in a triplet paired model with respect to the well behave singlet model. For singlet paired superconductors, the functional shape of the lifetime due to elastic scattering around the nodal regions does not change with the change of the disorder concentration, but for a triplet model with a tiny gap, an anomalous drop in shape is observed only when small values of disordering are added. We use a 2D tight-binding parametrization to study the reduced phase space of the first Brillouin zone, where the low energy scattering is restricted to the nodal/quasinodal regions for two irreducible representations of the crystal lattice.
ISSN:2331-8422
DOI:10.48550/arxiv.2109.02407