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arXiv · 2103.00687

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

Wenhao Liu·Sheng Li·hanlin Wu·Nikhil Dhale·Pawan Koirala·Bing Lv
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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

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Wenhao Liu, Sheng Li, hanlin Wu, Nikhil Dhale, Pawan Koirala, Bing Lv. 2021-03-01. Enhanced Superconductivity in the Se-substituted 1T-PdTe$_2$. https://doi.org/10.1103/physrevmaterials.5.014802

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