Manasi Mandal, A. Kataria, P. K. Meena, R. K. Kushwaha, D. Singh, P. K. Biswas, R. Stewart, A. D. Hillier, R. P. Singh
{"title":"Time-Reversal Symmetry Breaking in Re-Based Kagome Lattice Superconductor","authors":"Manasi Mandal, A. Kataria, P. K. Meena, R. K. Kushwaha, D. Singh, P. K. Biswas, R. Stewart, A. D. Hillier, R. P. Singh","doi":"arxiv-2409.10941","DOIUrl":null,"url":null,"abstract":"We investigated the Re-based kagome superconductor Re$_2$Zr through various\nmeasurements, including resistivity, magnetization, specific heat, and muon\nspin rotation and relaxation spectroscopy. These results suggest that Re$_2$Zr\nis a moderately coupled potential two-gap superconductor. Zero-field muon\nrelaxation data indicate the possible presence of a time-reversal\nsymmetry-breaking state in the superconducting ground state. Our investigation\nidentifies Re$_{2}$Zr as a new unconventional superconductor with a potential\ncomplex order parameter that warrants considerable experimental and theoretical\ninterest.","PeriodicalId":501069,"journal":{"name":"arXiv - PHYS - Superconductivity","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Superconductivity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.10941","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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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