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arXiv · 2509.15078

Superconductivity in W3Re2C with chiral structure

Lei Yang·Jing Jiang·Hui-Hui He·Ying Ma·Kai Liu·Xiao Zhang·Hechang Lei
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Abstract

We discover superconductivity in cubic W3Re2C with chiral structure and the superconducting transition temperature Tc is about 6.2 K. Detailed characterizations and analysis indicate that W3Re2C is a bulk type-II BCS superconductor with full isotropic gap. Moreover, first-principles calculations indicate that the electron-phonon coupling primarily arises from interactions between W/Re 5d electronic states and their low-frequency phonons. Furthermore, the breaking of inversion symmetry in W3Re2C facilitates the emergence of Weyl points in the electronic structure. Therefore, W3Re2C can serve as a promising platform for investigating the influences of chiral structure on both superconductivity and band topology.

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Lei Yang, Jing Jiang, Hui-Hui He, Ying Ma, Kai Liu, Xiao Zhang, Hechang Lei. 2025-09-18. Superconductivity in W3Re2C with chiral structure. https://doi.org/10.1021/jacs.5c16623

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