Electronic Structure and Upper Critical Field of Superconducting Ta${}_2$PdS${}_5$

Abstract

We report electronic structure calculations for Ta${}_2$PdS${}_5$, which is a layered superconductor containing heavy elements and displaying an upper critical field, $H_{c2}(0)$, $\sim$3 times higher than the estimated Pauli limit. We show that this is a multiband superconductor that is most likely in the strong coupling regime. This provides an alternative explanation to strong spin orbit scattering for the high upper critical field.

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• Possible multiband superconductivity in the quaternary carbide YRe2SiC
• Enhanced superconductivity in hole-doped Nb${}_2$PdS${}_5$
• Two-dimensional superconductivity in a bulk single-crystal
• Multiband Semimetallic Electronic Structure of Superconducting Ta2PdSe5
• Single gap s-wave superconductivity in Nb2PdS5
• Valence band electronic structure of Nb2Pd1.2Se5 and Nb2Pd0.95S5 superconductors
• Valence band electronic structure of Pd based ternary chalcogenide superconductors