Eliashberg equations for an electron–phonon version of the Sachdev–Ye–Kitaev model: Pair breaking in non-Fermi liquid superconductors
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Physics"
DOI: 10.1016/j.aop.2020.168120
Abstract: We present a theory that is a non-Fermi-liquid counterpart of the Abrikosov-Gor'kov pair-breaking theory due to paramagnetic impurities in superconductors. To this end we analyze a model of interacting electrons and phonons that is a… read more here.
Keywords: non fermi; fermi liquid; state; model ... See more keywords
Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover
Sign Up to like & getrecommendations! Published in 2022 at "New Journal of Physics"
DOI: 10.1088/1367-2630/acdab5
Abstract: We consider collective excitations in the superfluid state of Fermi condensed charged gases. The dispersion and damping of collective excitations at nonzero temperatures are examined, and the coexistence and interaction of different branches of collective… read more here.
Keywords: fermi superfluid; charged fermi; superfluid bcs; collective excitations ... See more keywords
Electromagnetic properties of impure superconductors with pair-breaking processes
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DOI: 10.1103/physrevb.96.014509
Abstract: Recently a generic model has been proposed for the single-particle properties of gapless superconductors with simultaneously present pair-conserving and pair-breaking impurity scattering (the so-called Dynes superconductors). Here we calculate the optical conductivity of the Dynes… read more here.
Keywords: dynes superconductors; pair breaking; superconductors pair; electromagnetic properties ... See more keywords
Paramagnetic Pair-Breaking in Spin-Triplet Superconductors with Spin–Orbit Coupling: Application to Sr2RuO4
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.88.064707
Abstract: Paramagnetic pair-breaking effects by in-plane magnetic fields are studied in the presence of the spin–orbit coupling, based on the tight-binding three-orbital model for Sr2RuO4. The spin–orbit cou... read more here.
Keywords: sr2ruo4; paramagnetic pair; orbit coupling; pair breaking ... See more keywords