Probing the intermediate state of type-I superconductor SnAs using Muon Spin Spectroscopy
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arXiv
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| Auteurs principaux: | , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912776276934656 |
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| author | Srivastava, Shashank Kulkarni, Omkar Arushi Singh, Deepak Manna, Poulami Mishra, Priya Sharma, Suhani Biswas, Pabitra Kumar Stewart, Rhea Hillier, Adrian D. Singh, Ravi Prakash |
| author_facet | Srivastava, Shashank Kulkarni, Omkar Arushi Singh, Deepak Manna, Poulami Mishra, Priya Sharma, Suhani Biswas, Pabitra Kumar Stewart, Rhea Hillier, Adrian D. Singh, Ravi Prakash |
| contents | Superconductivity with non-trivial band topology provides a novel platform for exploring topological superconductivity and its quantum applications. A detailed microscopic understanding of the superconducting ground state in such materials is crucial. Here, we report the results of a muon spin rotation/relaxation study ($μ$SR) of the topologically non-trivial superconductor SnAs, which exhibits superconductivity below 3.74(1) \si{K}. Zero-field (ZF) $μ$SR data reveal that this system is a time-reversal invariant superconductor, and systematic transverse-field (TF) $μ$SR measurements unveil the type-I nature of the SnAs superconductor. We have established the superconducting phase diagram to understand the intermediate state of type-I superconductors. Moreover, ab \textit{initio} band structure and phonon calculations are performed, which correlate with the experimental characterization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_17282 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing the intermediate state of type-I superconductor SnAs using Muon Spin Spectroscopy Srivastava, Shashank Kulkarni, Omkar Arushi Singh, Deepak Manna, Poulami Mishra, Priya Sharma, Suhani Biswas, Pabitra Kumar Stewart, Rhea Hillier, Adrian D. Singh, Ravi Prakash Superconductivity Superconductivity with non-trivial band topology provides a novel platform for exploring topological superconductivity and its quantum applications. A detailed microscopic understanding of the superconducting ground state in such materials is crucial. Here, we report the results of a muon spin rotation/relaxation study ($μ$SR) of the topologically non-trivial superconductor SnAs, which exhibits superconductivity below 3.74(1) \si{K}. Zero-field (ZF) $μ$SR data reveal that this system is a time-reversal invariant superconductor, and systematic transverse-field (TF) $μ$SR measurements unveil the type-I nature of the SnAs superconductor. We have established the superconducting phase diagram to understand the intermediate state of type-I superconductors. Moreover, ab \textit{initio} band structure and phonon calculations are performed, which correlate with the experimental characterization. |
| title | Probing the intermediate state of type-I superconductor SnAs using Muon Spin Spectroscopy |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2512.17282 |