Electronic transport in T-shaped armchair graphene nanoribbons

被引：0
|
作者：
Li, Xizhi [1 ]
Zhong, Chonggui [1 ,2 ,3 ]
机构：
[1] Nantong Univ, Sch Phys, Nantong 226019, Peoples R China
[2] Nantong Univ, Res Ctr Quantum Phys & Mat, Nantong 226019, Peoples R China
[3] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2024年 / 673卷
基金：
中国国家自然科学基金;
关键词：
Electronic transport; Field-effect transistor; Tight-binding model; Graphene nanoribbons; Energy filter; Green's function; ON-SURFACE SYNTHESIS; 9-ATOM;
D O I：
10.1016/j.physb.2023.415437
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the transport properties in T-shaped armchair graphene nanoribbons with a zigzag-edge sidearm connected to two normal-conducting leads. For semiconducting armchair graphene nanoribbons, the conduction peaks can be introduced into the gap regime, which may be used as an energy filter. The metallic armchair graphene nanoribbons with a sidearm are proposed for a field-effect transistor where the on and off states are switched by tuning the length or the width of the sidearm. In addition, we demonstrate that both the on and off states are robust to the tunneling barrier between the leads and the graphene nanoribbons.
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页数：4
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