文献类型：期刊文献

中文题名：Intrinsic ferroelectrics and carrier doping-induced metallic multiferroics in an atomic wire

作者：Tao Xu[1,2];Jingtong Zhang[3,4];Chunyu Wang[5];Xiaoyuan Wang[5];Takahiro Shimada[2];Jie Wang[3,4];Hongxin Yang[1]

机构：[1]Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,315201,China;[2]Department of Mechanical Engineering and Science,Kyoto University,Nishikyo-ku,Kyoto,615-8540,Japan;[3]Department of Engineering Mechanics,School of Aeronautics and Astronautics Zhejiang University,Hangzhou,310027,China;[4]Zhejiang Laboratory,Hangzhou,311100,Zhejiang,China;[5]Key Laboratory of Pressure Systems and Safety Ministry of Education,East China University of Science and Technology,Shanghai,200237,China

年份：2023

卷号：9

期号：5

起止页码：892

中文期刊名：Journal of Materiomics

外文期刊名：无机材料学学报（英文）

收录：Scopus;CSCD:【CSCD2023_2024】；

基金：supported by the National Natural Science Foundation of China(Grant Nos.12172370,11874059 and 12174405);Natural Science Foundation of Zhejiang Provincial(Grant Nos.LY22E020012 and LR19A040002);National Key R&D Program of China(Grant No.2022YFB3807601),the Key Research Project of Zhejiang Laboratory(Grant No.2021PE0AC02);Zhejiang Laboratory Open Research Project(Grant No.K2022PE0AB06)and JSPS International Research Fellow(No.P22065).

语种：英文

中文关键词：1D materials;Ferroelectrics;Metallic multiferroics;First-principles calculations;Electron doping

摘要：Low-dimensional multiferroic metals characterized by the simultaneous coexistence of ferroelectricity,conductivity,and magnetism hold tremendous potential for scientific and technological endeavors.However,the mutually exclusive mechanisms among these properties impede the discovery of multifunctional conducting multiferroics,especially at the atomic-scale.Here,based on first-principles calculations,we design and demonstrate intrinsic one-dimensional(1D)ferroelectrics and carrier dopinginduced metallic multiferroics in an atomicWOF4 wire.TheWOF4 atomic wire that can be derived from a 1D van derWaals crystal exhibits pronounced ferroelectricity manifested in the form of large cooperative atomic displacements.By performing Monte Carlo simulations with an effective Hamiltonian method,we obtain the nanowire that can sustain a high Curie temperature,indicating its potential for roomtemperature applications.Moreover,doping with electrons is found to induce magnetism and metallic conductivity that coexists with the ferroelectric distortion in the nanowire.These appealing properties in conjunction with the experimental feasibility enable the doped WOF4 nanowire to act as a promising atomic-scale multifunctional material.