$μ$SR study on noncentrosymmetric superconductor NbGe$_{\mathbf{2}}$
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909425335271424 |
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| author | Jiao, J. C. Chen, K. W. Hillier, A. D. Ito, T. U. Higemoto, W. Li, Z. Lv, B. J. Xu, Z. -A. Shu, L. |
| author_facet | Jiao, J. C. Chen, K. W. Hillier, A. D. Ito, T. U. Higemoto, W. Li, Z. Lv, B. J. Xu, Z. -A. Shu, L. |
| contents | We report a muon spin relaxation ($μ$SR) study on polycrystalline noncentrosymmetric superconductor NbGe$_2$~with the superconducting transition temperature $T_c=2.0\sim2.1$~K. Zero-field $μ$SR~experiment indicates the absence of spontaneous magnetic field in the superconducting state, showing the preservation of time-reversal symmetry in the superconducting state. Transverse-field $μ$SR~experiment is performed to map the phase diagram of NbGe$_2$, from which clear evidence of both type-I and type-II superconductivity is obtained. More importantly, we clearly delineate the region in the phase diagram where type-I and type-II superconductivity coexist. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_08994 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | $μ$SR study on noncentrosymmetric superconductor NbGe$_{\mathbf{2}}$ Jiao, J. C. Chen, K. W. Hillier, A. D. Ito, T. U. Higemoto, W. Li, Z. Lv, B. J. Xu, Z. -A. Shu, L. Superconductivity We report a muon spin relaxation ($μ$SR) study on polycrystalline noncentrosymmetric superconductor NbGe$_2$~with the superconducting transition temperature $T_c=2.0\sim2.1$~K. Zero-field $μ$SR~experiment indicates the absence of spontaneous magnetic field in the superconducting state, showing the preservation of time-reversal symmetry in the superconducting state. Transverse-field $μ$SR~experiment is performed to map the phase diagram of NbGe$_2$, from which clear evidence of both type-I and type-II superconductivity is obtained. More importantly, we clearly delineate the region in the phase diagram where type-I and type-II superconductivity coexist. |
| title | $μ$SR study on noncentrosymmetric superconductor NbGe$_{\mathbf{2}}$ |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2412.08994 |