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arXiv · 2303.01340

Superconducting properties of van der Waals metal-rich subsulfide Nb$_{1.7}$Ta$_{3.3}$S$_2$

A. Kataria·R. P. Singh
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Abstract

Layered metal-rich subsulfides have become a promising area for exploring intriguing properties such as superconductivity, nontrivial topology, and charge density waves; however, despite their extraordinary potential, they have remained largely unexplored. We report a comprehensive analysis of a van der Waals layered metal-rich subsulfide, Nb$_{1.7}$Ta$_{3.3}$S$_2$, using a range of measuring techniques, including AC transport, magnetization, and specific heat. Our measurements confirm the occurrence of a type-II superconducting transition at a temperature of approximately $T_c$ = 3.64(1) K. Furthermore, specific heat measurements suggest weakly coupled, nodeless superconductivity.

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A. Kataria, R. P. Singh. 2023-03-02. Superconducting properties of van der Waals metal-rich subsulfide Nb$_{1.7}$Ta$_{3.3}$S$_2$. https://doi.org/10.1088/1361-6668/ace5e8

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