Rippling and the external electric field on conductance in corrugated graphene nanoribbons molecular device

被引：4

作者：

Xu, N. ^{[1
]}

Wang, B. L. ^{[1
]}

Sun, H. Q. ^{[1
]}

Kong, F. J. ^{[1
]}

机构：

[1] Yancheng Inst Technol, Dept Phys, Yancheng 224051, Jiangsu, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2011年 / 406卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Electron transport; Graphene nanoribbons; SUSPENDED GRAPHENE;

D O I：

10.1016/j.physb.2010.11.065

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Molecular devices constructed using corrugated graphene nanoribbons (GNRs) are proposed in the paper. Recursive Green's function calculations show that the intrinsic ripples in graphene and the external electric field energy play important roles on the electron transport properties. Negative differential resistance is observed in zigzag corrugated GNRs. With the wavelength of the ripples decreasing, both the zigzag and armchair corrugated GNRs exhibit ON/OFF characteristics. On applying external electric field, current decreases dramatically in zigzag corrugated GNRs. These findings show that corrugated GNRs can be used to design functional nanoscale devices. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：756 / 759

页数：4

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