Superconductivity in a Layered Ta4Pd3Te16 with PdTe2 Chains

Abstract

Superconductivity in low-dimensional compounds has long attracted much interest. Here we report superconductivity in a low-dimensional ternary telluride Ta4Pd3Te16 in which the repeating layers contain edge-sharing octahedrally-coordinated PdTe2 chains along the crystallographic b axis. Measurements of electrical resistivity, magnetic susceptibility and specific heat on the Ta4Pd3Te16 crystals, grown via a self-flux method, consistently demonstrate bulk superconductivity at 4.6 K. Further analyses of the data indicate significant electron-electron interaction, which allows electronic Cooper pairing in the present system.

3 pages, 3 figures

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• Nodal superconductivity and superconducting dome in new layered superconductor Ta4Pd3Te16
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• Thermodynamic Anomaly Above the Superconducting Critical Temperature in the Quasi One-Dimensional Superconductor Ta${}_4$Pd${}_3$Te${}_{16}$
• Superconductivity in Nb2Pd3Te5 and Chemically-Doped Ta2Pd3Te5
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• Charge fluctuations and nodeless superconductivity in quasi-one-dimensional Ta${}_4$Pd${}_3$Te${}_{16}$ revealed by ${}^{125}$Te-NMR and ${}^{181}$Ta-NQR
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• Novel superconducting phenomena in quasi-one-dimensional Bechgaard salts
• Quasi one-dimensional organic conductors: from Fröhlich conductivity and Peierls insulating state to magnetically-mediated superconductivity, a retrospective
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• Incommensurate two-dimensional checkerboard charge density wave in the low dimensional superconductor Ta4Pd3Te16
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• Two-dimensional superconductivity in a bulk single-crystal
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• Superconductivity from site-selective Ru doping studies in Zr${}_5$Ge${}_3$ compound
• Pressure induced change in the electronic state of Ta${}_4$Pd${}_3$Te${}_{16}$
• Raman scattering investigation of quasi-one-dimensional superconductor 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 Pd based ternary chalcogenide superconductors
• Valence band electronic structure of Nb2Pd1.2Se5 and Nb2Pd0.95S5 superconductors
• Violation of Kohler rule in Ta2PdTe6 and absence of same in Nb2PdS5- A high field magneto transport study