A Molecular Crystal Shows Multiple Correlated Magnetic and Ferroelectric Switchings  

作　　者：Yun Li Shu-Qi Wu Jin-Peng Xue Xiao-Lei Wang Osamu Sato Zi-Shuo Yao Jun Tao 

机构地区：[1]Key Laboratory of Cluster Science of Ministry of Education,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081 [2]Institute for Materials Chemistry and Engineering,Kyushu University,Fukuoka 819-0395

出　　处：《CCS Chemistry》2021年第9期2464-2472,共9页中国化学会会刊（英文）

基　　金：supported by the National Natural Science Foundation of China(grant nos.21701013,21671161,and 21971016);the Beijing Institute of Technology Research Fund Program for Young Scholars.

摘　　要：Simultaneous control of the magnetic and electric properties of materials is crucial for their application in next-generation memory and sensor devices.Herein,we report a single-crystal Co(II)complex that exhibits unprecedented two-step magnetic switching accompanied by paraelectric–ferroelectric–paraelectric phase transition.The ferroelectricity of the material is governed by changes in the directionality of the sulfate dianions therein that trigger nonpolar–polar–nonpolar variation of the crystal symmetry and induce slight structural changes in the Co(II)complex.

关 键 词：molecular ferroelectric magnetic switching phase transition symmetry breaking CO(II) 

分 类 号：TB34[一般工业技术—材料科学与工程]