Discovery of a Single-Band Mott Insulator in a van der Waals Flat-Band Compound
Shunye Gao, Shuai Zhang, Cuixiang Wang, Shaohua Yan, Xin Han, Xuecong Ji, Wei Tao, Jingtong Liu, Tiantian Wang, Shuaikang Yuan, Gexing Qu, Ziyan Chen, Yongzhao Zhang, Jierui Huang, Mojun Pan, Shiyu Peng, Yong Hu, Hang Li, Yaobo Huang, Hui Zhou, Sheng Meng, Liu Yang, Zhiwei Wang, Yugui Yao, Zhiguo Chen, M. Shi, Hong Ding, Huaixin Yang, Kun Jiang, Yunliang Li, Hechang Lei, Youguo Shi, Hongming Weng, Tian Qian
Abstract
The fundamental model for understanding Mott insulators is the single-band Hubbard model. An ideal realization of that model arises in Nb${}_{3}$Cl${}_{8}$, proving a powerful system for exploring Mott physics and other correlated states.
Topics & Concepts
Mott insulatorCondensed matter physicsMott transitionPhysicsvan der Waals forceStrongly correlated materialHubbard modelMaterials scienceQuantum mechanicsElectronSuperconductivityMoleculeAdvanced Condensed Matter PhysicsPerovskite Materials and Applications2D Materials and Applications