Strong ferroelectricity in one-dimensional materials self-assembled by superatomic metal halide clusters  

作　　者：Yu Guo Yang Zhao Qiao Ling Si Zhou Jijun Zhao 

机构地区：[1]Key Laboratory of Materials Modification by Laser,lon and Electron Beams(Dalian University of Technology),Ministry of Education,Dalian 116024,China [2]Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,School of Physics,South China Normal University,Guangzhou 510006,China [3]Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Frontier Research Institute for Physics,South China Normal University,Guangzhou 510006,China

出　　处：《Frontiers of physics》2024年第6期53-60,共8页物理学前沿(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.12004065,91961204,12222403,and 11974068);the Doctoral Start-up Foundation of Liaoning Province(No.2022-BS-081);the Fundamental Research Funds for the Central Univeristies(No.DUT24LAB114).

摘　　要：Cluster-assembled materials have long been pursued as they can create some unprecedented and desirable properties.Herein,we assemble a class of one-dimensional(1D)ReNX_(4)(X=F,Cl,Br and I)and MFs(M=V,Nb and Ta)nanowires by covalently linking their superatomic clusters.These assembled ID nanowires exhibit outstanding energetic and dynamic stabilities,and hold sizable spontaneous polarization,low ferroelectric switching barriers and high critical temperature.Their superior ferroelec-tricity is originated from do-configuration transition metal ions generated by the hybridization of empty d orbitals of metal atoms and p orbitals of non-metal atoms.These critical insights pave a new avenue to fabricate 1D ferroelectrics toward the development of miniaturized and high-density electronic devices using building blocks as cluster with precise structures and functionalities.

关 键 词：FERROELECTRICITY superatom cluster-assembled materials electronic properties first-principles calculations 

分 类 号：TB3[一般工业技术—材料科学与工程]