磁场增强的石墠超导性及其显著的Pauli极限违规
超导电性
2026-01-08 v3
摘要
自旋极化超导体为研究电子关联提供了罕见的平台，但至今仅有少数候选系统得到实验确认。本文报道了在WSe2近似化石层三层石墠中观察到的一种自旋极化超导态，称为SC5。当平行磁场B||=0 T时，SC5的临界温度为68 mK，垂直临界磁场仅为12 mT。令人惊讶的是，随着B||的增大，这些数值显著增强，超导性持续到B||=8.8 T。该值在已知所有超导体中，Pauli极限违规比率至少达到80，而真正的临界场超出了本仪器的测量范围。我们得出结论，SC5在B||增大时经历了从Ising型向自旋极化超导体的倾斜交叉。
引用
@article{arxiv.2510.10873,
title = {Magnetic Field-Enhanced Graphene Superconductivity with Record Pauli-Limit Violation},
author = {Jixiang Yang and Omid Sharifi Sedeh and Chiho Yoon and Shenyong Ye and Henok Weldeyesus and Armel Cotten and Tonghang Han and Zhengguang Lu and Zach Hadjri and Junseok Seo and Lihan Shi and Emily Aitken and Prayoga P Liong and Zhenghan Wu and Mingchi Xu and Christian Scheller and Mingyang Zheng and Rasul Gazizulin and Kenji Watanabe and Takashi Taniguchi and Dominique Laroche and Mingda Li and Fan Zhang and Dominik M. Zumbühl and Long Ju},
journal= {arXiv preprint arXiv:2510.10873},
year = {2026}
}
备注
18 pages, 4 figures