Modeling graphene-based nanoelectromechanical devices

被引：53

作者：

Poetschke, M. ^{[1
,2
]}

Rocha, C. G. ^{[1
,2
]}

Torres, L. E. F. Foa ^{[3
,4
]}

Roche, S. ^{[1
,2
,5
,6
]}

Cuniberti, G. ^{[1
,2
]}

机构：

[1] Tech Univ Dresden, Inst Mat Sci, D-01062 Dresden, Germany

[2] Tech Univ Dresden, Max Bergmann Ctr Biomat, D-01062 Dresden, Germany

[3] Univ Nacl Cordoba, CONICET, Inst Fis Enrique Gaviola, RA-5000 Cordoba, Argentina

[4] Univ Nacl Cordoba, FAMAF, RA-5000 Cordoba, Argentina

[5] CEA, INAC, SP2M, L Sim, F-38054 Grenoble 9, France

[6] CSIC ICN Barcelona CIN2, E-08193 Bellaterra, Spain

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 19期

关键词：

TRANSPORT-PROPERTIES; CARBON;

D O I：

10.1103/PhysRevB.81.193404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a theoretical study of charge transport properties of graphene nanoribbons under external mechanical stress. The influence of mechanical forces on the ribbon conductance is shown to be strongly dependent on the ribbon edge symmetry, i.e., zigzag versus armchair. In contrast to zigzag-edge nanoribbons which remain robust against high strain deformations, a stretching-induced metal-semiconductor transition is obtained for armchair-edge configurations. Our results point out that armchair edge ribbons are consequently much better suited for electromechanical applications.

引用

页数：4

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