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

被引:0
|
作者
Guo, Yu [1 ]
Zhao, Yang [1 ]
Ling, Qiao [1 ]
Zhou, Si [1 ,2 ,3 ]
Zhao, Jijun [1 ,2 ,3 ]
机构
[1] Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China
[2] South China Normal Univ, Sch Phys, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
[3] South China Normal Univ, Frontier Res Inst Phys, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R China
基金
中国国家自然科学基金;
关键词
ferroelectricity; superatom; cluster-assembled materials; electronic properties; first-principles calculations; WAVE; PIEZOELECTRICITY; PSEUDOPOTENTIALS; SEMICONDUCTOR; DYNAMICS; BATIO3;
D O I
10.1007/s11467-024-1434-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
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) ReNX4 (X = F, Cl, Br and I) and MF5 (M = V, Nb and Ta) nanowires by covalently linking their superatomic clusters. These assembled 1D nanowires exhibit outstanding energetic and dynamic stabilities, and hold sizable spontaneous polarization, low ferroelectric switching barriers and high critical temperature. Their superior ferroelectricity is originated from d(0)-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.
引用
收藏
页数:8
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