Multiband Te $p$ Based Superconductivity of Ta${}_4$Pd${}_3$Te${}_{16}$

Abstract

Ta${}_4$Pd${}_3$Te${}_{16}$ is a recently discovered superconductor that has been suggested to be an unconventional superconductor near magnetism. We report electronic structure calculations showing that in spite of the layered crystal structure the material is an anisotropic three dimensional metal. The Fermi surface contains prominent one and two dimensional features, including nested 1D sheets, a 2D cylindrical section and a 3D sheet. The electronic states that make up the Fermi surface are mostly derived from Te $p$ states, with small Ta $d$ and Pd $d$ contributions. This places the compound far from magnetic instabilities. The results are discussed in terms of multiband superconductivity.

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Cited by in corpus (16)

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• Electronic transport properties of intermediately coupled superconductors: PdTe2 and Cu0.04PdTe2
• Nodal superconductivity and superconducting dome in new layered superconductor Ta4Pd3Te16
• Quasi-linear magnetoresistance and the violation of Kohler's rule in the quasi-one-dimensional Ta${}_4$Pd${}_3$Te${}_{16}$ superconductor
• Thermodynamic Anomaly Above the Superconducting Critical Temperature in the Quasi One-Dimensional Superconductor Ta${}_4$Pd${}_3$Te${}_{16}$
• Charge fluctuations and nodeless superconductivity in quasi-one-dimensional Ta${}_4$Pd${}_3$Te${}_{16}$ revealed by ${}^{125}$Te-NMR and ${}^{181}$Ta-NQR
• Novel superconducting phenomena in quasi-one-dimensional Bechgaard salts
• Incommensurate two-dimensional checkerboard charge density wave in the low dimensional superconductor Ta4Pd3Te16
• Multiband superconductivity in Ta${}_4$Pd${}_3$Te${}_{16}$ with anisotropic gap structure
• Two-dimensional superconductivity in a bulk single-crystal
• Multiband Semimetallic Electronic Structure of Superconducting Ta2PdSe5
• Raman scattering investigation of quasi-one-dimensional superconductor Ta${}_4$Pd${}_3$Te${}_{16}$
• Pressure induced change in the electronic state of Ta${}_4$Pd${}_3$Te${}_{16}$
• Evidence for nodal superconductivity in a layered compound Ta${}_4$Pd${}_3$Te${}_{16}$
• Valence band electronic structure of Nb2Pd1.2Se5 and Nb2Pd0.95S5 superconductors
• Valence band electronic structure of Pd based ternary chalcogenide superconductors