Van Hove annihilation and nematic instability on a kagome lattice

• Main Authors: Jiang, Yu-Xiao, Shao, Sen, Xia, Wei, Denner, M. Michael, Ingham, Julian, Hossain, Md Shafayat, Qiu, Qingzheng, Zheng, Xiquan, Chen, Hongyu, Cheng, Zi-Jia, Yang, Xian P., Kim, Byunghoon, Yin, Jia-Xin, Zhang, Songbo, Litskevich, Maksim, Zhang, Qi, Cochran, Tyler A., Peng, Yingying, Chang, Guoqing, Guo, Yanfeng, Thomale, Ronny, Neupert, Titus, Hasan, M. Zahid
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2025
• Subjects: Physics; Kagome lattice; Nematics
• Online Access: https://hdl.handle.net/10356/182713
• Institution: Nanyang Technological University

A nematic phase breaks the point-group symmetry of the crystal lattice and is known to emerge in correlated materials. Here we report the observation of an intra-unit-cell nematic order and associated Fermi surface deformation in the kagome metal ScV6Sn6. Using scanning tunnelling microscopy and sca...