Multiferroicity and giant in-plane negative Poisson’s ratio in wurtzite monolayers

作     者：Zhuang Ma Pu Huang Jin Li Peng Zhang Jiaxin Zheng Wen Xiong Fei Wang Xiuwen Zhang 

作者机构：Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen University518060ShenzhenChina School of Advanced MaterialsPeking UniversityShenzhen Graduate School518055ShenzhenChina Chongqing Institute of Green and Intelligent TechnologyChinese Academy of Sciences400714ChongqingChina School of Physics and MicroelectronicsZhengzhou University450001ZhengzhouChina 

出 版 物：《npj Computational Materials》 (计算材料学（英文）)

年 卷 期：2022年第8卷第1期

页      面：489-499页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This work is supported by National Natural Science Foundation of China(Grant Nos.11804230,11774239,61827815) Shenzhen Science and Technology Innovation Commission(Grant Nos.KQTD20170810105439418,KQTD20180412181422399,JCYJ20180507181858539,ZDSYS201707271554071) High-Level University Construction Funds of SZU(Grant No.860-000002081209 and 860-000002110711) 

主　　题：plane splitting molybdenum 

摘      要：Monolayers of layered materials,such as graphite and molybdenum dichalcogenides,have been the focus of materials science in the last ***,we reveal benign stability and intriguing physical properties in the thinnest monolayer wurtzite(wz)semiconductors,which can be exfoliated from their bulk and stacked to reform the wz *** candidate ZnX and CdX(X=S,Se,Te)monolayers possess low cleavage energy and direct bandgaps,which harbor strongly coupled ferroelectricity and ferroelasticity with low transition barriers,giant in-plane negative Poisson’s ratio,as well as giant Rashba spin splitting,enabling the co-tunability of spin splitting and auxetic magnitudes via multiferroic *** wz monolayers can be used as building blocks of devices structures,due to their inherent“self-healablecapacity,which offer more flexibility for semiconductor fabrication and provide a natural platform to probe the interplay of multiple physical effects,bringing light into the rich physics in tetrahedral semiconductors.