Highlight 2025 from APS Physics Magazine:

Of the many ways that graphene sheets can be stacked, a simple staggered arrangement has attracted much of this year’s attention. The staggered sheets form so-called rhombohedral graphene, which may host exotic quantum phenomena owing to its unusually flat electronic bands. Indeed, researchers discovered two new superconducting states in rhombohedral graphene that exhibit both chirality and magnetism—a first for any superconductor (see Research News: Chiral Superconductivity in Rhombohedral Graphene). One exciting prospect is that subsequent experiments could reveal that the states are not just chiral but topological too. If that possibility pans out, rhombohedral graphene could serve as a platform for fault-tolerant quantum computers.

See the full list of 2025 highlights. 

Signatures of chiral superconductivity in rhombohedral graphene

Tonghang Han, Zhengguang Lu, Zach Hadjri, Lihan Shi, Zhenghan Wu, Wei Xu, Yuxuan Yao, Armel A. Cotten, Omid Sharifi Sedeh, Henok Weldeyesus, Jixiang Yang, Junseok Seo, Shenyong Ye, Muyang Zhou, Haoyang Liu, Gang Shi, Zhenqi Hua, Kenji Watanabe, Takashi Taniguchi, Peng Xiong, Dominik M. Zumbühl, Liang Fu, Long Ju, arXiv:2408.15233 (Feb 19, 2025), Nature 643, 654 (May 22, 2025), manuscript pdf

Research news in APS Physics Magazine: Chiral Superconductivity in Rhombohedral Graphene.

Commentary by the Condensed Matter Physics Journal Club: Chiral Superconductivity in the Flat Bands of Rhombohedral Graphene, Ya-Hui Zhang, and Ashvin Vishwanath, https://doi.org/10.36471/JCCM_February_2025_02, commentary pdf