Noncentrosymmetric Mott ground state in the breathing kagome lattice Nb3Cl8RemoveKeyi Li, Xin Han, Hao Li, Helin Mei, Mingshu Tan, Bingru Lu, Xiang Li, Wenbo Sang, Xinbo Wang, Anmin Zhang, Jianting Ji, Youguo Shi, Feng Jin, and Qingming ZhangPhys. Rev. B 112, 214116 (2025)