Transport characteristics of graphene-metal interfaces

被引：9

作者：

Do, V. Nam ^{[1
]}

Le, H. Anh ^{[2
]}

机构：

[1] HUST, ICCMS, Hanoi 10000, Vietnam

[2] HUST, CTES, Hanoi 10000, Vietnam

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 16期

关键词：

Electron transport properties - Current voltage characteristics - Metals;

D O I：

10.1063/1.4761940

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A physical model is proposed to clarify the electron transport through graphene-metal interfaces. It is based on an effective description of the coupling between the graphene pi-bands and the metal sd- and d-bands. Applying this model to vertically symmetrical metal-graphene-metal structures, we show that the current-voltage characteristics can be either linear or non-linear with a negative or positive differential resistance depending on the dominance of the d-like or s-like electrons in the metal as well as the graphene-metal coupling. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4761940]

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页数：5

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