Magnetic Field-Enhanced Graphene Superconductivity with Record Pauli-Limit Violation
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908750464417792 |
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| author | Yang, Jixiang Sedeh, Omid Sharifi Yoon, Chiho Ye, Shenyong Weldeyesus, Henok Cotten, Armel Han, Tonghang Lu, Zhengguang Hadjri, Zach Seo, Junseok Shi, Lihan Aitken, Emily Liong, Prayoga P Wu, Zhenghan Xu, Mingchi Scheller, Christian Zheng, Mingyang Gazizulin, Rasul Watanabe, Kenji Taniguchi, Takashi Laroche, Dominique Li, Mingda Zhang, Fan Zumbühl, Dominik M. Ju, Long |
| author_facet | Yang, Jixiang Sedeh, Omid Sharifi Yoon, Chiho Ye, Shenyong Weldeyesus, Henok Cotten, Armel Han, Tonghang Lu, Zhengguang Hadjri, Zach Seo, Junseok Shi, Lihan Aitken, Emily Liong, Prayoga P Wu, Zhenghan Xu, Mingchi Scheller, Christian Zheng, Mingyang Gazizulin, Rasul Watanabe, Kenji Taniguchi, Takashi Laroche, Dominique Li, Mingda Zhang, Fan Zumbühl, Dominik M. Ju, Long |
| contents | Spin-polarized superconductors offer a rare platform for studying electronic correlations, but few candidate systems have been experimentally confirmed to date. Here, we report the observation of a spin-polarized superconducting state, denoted SC5, in WSe2-proximitized rhombohedral trilayer graphene. At in-plane magnetic field B|| = 0 T, SC5 has a critical temperature of 68 mK and an out-of-plane critical magnetic field of only 12 mT. Surprisingly, these values are significantly enhanced as B|| increases, and the superconductivity persists to B|| = 8.8 T. This value corresponds to a record-high Pauli-limit violation ratio of at least 80 among all superconductors, while the true critical field is beyond the limit of our instrument. We conclude that SC5 experiences a canting crossover from Ising-type to spin-polarized superconductor with increased B||. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_10873 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic Field-Enhanced Graphene Superconductivity with Record Pauli-Limit Violation Yang, Jixiang Sedeh, Omid Sharifi Yoon, Chiho Ye, Shenyong Weldeyesus, Henok Cotten, Armel Han, Tonghang Lu, Zhengguang Hadjri, Zach Seo, Junseok Shi, Lihan Aitken, Emily Liong, Prayoga P Wu, Zhenghan Xu, Mingchi Scheller, Christian Zheng, Mingyang Gazizulin, Rasul Watanabe, Kenji Taniguchi, Takashi Laroche, Dominique Li, Mingda Zhang, Fan Zumbühl, Dominik M. Ju, Long Superconductivity Spin-polarized superconductors offer a rare platform for studying electronic correlations, but few candidate systems have been experimentally confirmed to date. Here, we report the observation of a spin-polarized superconducting state, denoted SC5, in WSe2-proximitized rhombohedral trilayer graphene. At in-plane magnetic field B|| = 0 T, SC5 has a critical temperature of 68 mK and an out-of-plane critical magnetic field of only 12 mT. Surprisingly, these values are significantly enhanced as B|| increases, and the superconductivity persists to B|| = 8.8 T. This value corresponds to a record-high Pauli-limit violation ratio of at least 80 among all superconductors, while the true critical field is beyond the limit of our instrument. We conclude that SC5 experiences a canting crossover from Ising-type to spin-polarized superconductor with increased B||. |
| title | Magnetic Field-Enhanced Graphene Superconductivity with Record Pauli-Limit Violation |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2510.10873 |