Enhanced Superconductivity in the Se-substituted 1T-PdTe${}_2$

Abstract

Two-dimensional transition metal dichalcogenide PdTe${}_2$ recently attracts much attention due to its phase coexistence of type-II Dirac semimetal and type-I superconductivity. Here we report a 67 % enhancement of superconducting transition temperature in the 1T-PdSeTe in comparison to that of PdTe2 through partial substitution of Te atoms by Se. The superconductivity has been unambiguously confirmed by the magnetization, resistivity and specific heat measurements. 1T-PdSeTe shows type-II superconductivity with large anisotropy and non-bulk superconductivity nature with volume fraction ~ 20 % estimated from magnetic and heat capacity measurements. 1T-PdSeTe expands the family of superconducting transition metal dichalcogenides and thus provides additional insights for understanding superconductivity and topological physics in the 1T-PdTe${}_2$ system

arXiv comment7 pages, 6 figures

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• Topological phase transition in MoTe${}_2$: A Review
• Learning to extrapolate using continued fractions: Predicting the critical temperature of superconductor materials
• Atomic diffusion-induced polarization and superconductivity in topological insulator-based heterostructures
• Anomalous Charge Density Wave State Evolution and Dome-like Superconductivity in CuIr2Te4-xSex Chalcogenides
• Chemical enhancement of superconductivity in LaRu3Si2 with mode-selective coupling between kagome phonons and flat bands
• Superconductivity in Bi based Bi2PdPt
• Transport anomalies in the layered compound BaPt4Se6