Effect of Geometrical Structure on Transport Properties of Silicene Nanoconstrictions  

作　　者：Yawen Guo Wenqi Jiang Xinru Wang Fei Wan Guanqing Wang G.H.Zhou Z.B.Siu Mansoor B.A.Jalil Yuan Li 郭雅文;蒋文琦;王新茹;万飞;王关晴;周光辉;萧卓彬;Mansoor B.A.Jalil;李源(Department of Physics,Hangzhou Dianzi University,Hangzhou 310018,China;Department of Physics and Key Laboratory for Low-Dimensional Quantum Structures and Manipulation(Ministry of Education),Hunan Normal University,Changsha 410081,China;Computational Nanoelectronics and Nano-device Laboratory,Electrical and Computer Engineering Department,National University of Singapore,Singapore 117576,Singapore)

机构地区：[1]Department of Physics,Hangzhou Dianzi University,Hangzhou 310018,China [2]Department of Physics and Key Laboratory for Low-Dimensional Quantum Structures and Manipulation(Ministry of Education),Hunan Normal University,Changsha 410081,China [3]Computational Nanoelectronics and Nano-device Laboratory,Electrical and Computer Engineering Department,National University of Singapore,Singapore 117576,Singapore

出　　处：《Chinese Physics Letters》2021年第12期57-61,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Grant No.11574067)。

摘　　要：We study electrical modulation of transport properties of silicene nanoconstrictions with different geometrical structures.We investigate the effects of the position and width of the central scattering region on the conductance with increasing Fermi energy.It is found that the conductance significantly depends on the position and the width of the nanoconstriction.Interestingly,the symmetrical structure of the central constriction region can induce a resonance effect and significantly increase the system’s conductance.We also propose a novel two-channel structure with an excellent performance on the conductance compared to the one-channel structure with the same total width.Such geometrically-induced conductance modulation of silicene nanostructures can be achieved in practice via current nanofabrication technology.

关 键 词：ENERGY CONDUCTANCE STRUCTURE 

分 类 号：TB383.1[一般工业技术—材料科学与工程]