The First Molecular Ferroelectric Mott Insulator
Abstract
Abstract With the discovery of colossal magnetoresistance materials and high‐temperature superconductors, Mott insulators can potentially undergo a transition from insulating state to metallic state. Here, in molecular ferroelectrics system, a Mott insulator of (C 7 H 14 N) 3 V 12 O 30 has been first synthesized, which is a 2D organic–inorganic ferroelectric with composition of layered vanadium oxide and quinuclidine ring. Interestingly, accompanied by the ferroelectric phase transition, (C 7 H 14 N) 3 V 12 O 30 changes sharply in conductivity. The occurrence of a Mott transition has been proven by electric transport measurements and theoretical calculations. This research has significantly expanded the applicative horizons of ferroelectric materials, and offering an ideal platform for the investigation of strongly correlated electron systems.
Article Details
Authors (10)
Jie Yao
Wencong Sun
Key Laboratory of Quantum Materials and Devices of Ministry of Education School of Physics Southeast University Nanjing 211189 P. R. China
Jianfeng Guo
Zi‐Jie Feng
Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast University Nanjing 211189 P.R. China
Qiang Pan
Jin Peng
Zhihai Cheng
Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, School of Physics
Shuai Dong
Southeast University , , ,
Ren‐Gen Xiong
Ordered Matter Science Research Center Nanchang University Nanchang P. R. China
Yu‐Meng You
Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics School of Chemistry and Chemical Engineering Southeast University Nanjing Jiangsu P. R. China