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arXiv · 2409.10941

Time-Reversal Symmetry Breaking in Re-Based Kagome Lattice Superconductor

Manasi Mandal·A. Kataria·P. K. Meena·R. K. Kushwaha·D. Singh·P. K. Biswas·R. Stewart·A. D. Hillier·R. P. Singh
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Abstract

We investigated the Re-based kagome superconductor Re$_2$Zr through various measurements, including resistivity, magnetization, specific heat, and muon spin rotation and relaxation spectroscopy. These results suggest that Re$_2$Zr is a moderately coupled potential two-gap superconductor. Zero-field muon relaxation data indicate the possible presence of a time-reversal symmetry-breaking state in the superconducting ground state. Our investigation identifies Re$_{2}$Zr as a new unconventional superconductor with a potential complex order parameter that warrants considerable experimental and theoretical interest.

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Manasi Mandal, A. Kataria, P. K. Meena, R. K. Kushwaha, D. Singh, P. K. Biswas, R. Stewart, A. D. Hillier, R. P. Singh. 2024-09-17. Time-Reversal Symmetry Breaking in Re-Based Kagome Lattice Superconductor. https://arxiv.org/abs/2409.10941

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