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.

References in corpus (3)

• Superconductivity Induced by Bond Breaking in the Triangular Lattice of IrTe2
• Superconductivity with extremely large upper critical fields in Nb2Pd0.81S5
• Superconductivity in a Layered Ta4Pd3Te16 with PdTe2 Chains

Cited by in corpus (8)

• Anisotropic Superconducting Gap and Elongated Vortices with Caroli-De-Gennes-Matricon States in the New Superconductor Ta4Pd3Te16
• 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
• Two-dimensional superconductivity in a bulk single-crystal
• Multiband Semimetallic Electronic Structure of Superconducting Ta2PdSe5
• Evidence for nodal superconductivity in a layered compound Ta${}_4$Pd${}_3$Te${}_{16}$
• Valence band electronic structure of Pd based ternary chalcogenide superconductors
• Valence band electronic structure of Nb2Pd1.2Se5 and Nb2Pd0.95S5 superconductors