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Effective contact model for transport through weakly-doped graphene.

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>31/07/2007
<mark>Journal</mark>Physical review B
Issue number4
Volume76
Pages (from-to)045433
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Recent investigations address transport through ballistic charge-neutral graphene strips coupled to doped graphitic leads. This paper shows that identical transport properties arise when the leads are replaced by quantum wires. This duality between graphitic and metallic leads originates in the selection of modes with transverse momentum close to the K points, and can be extended to a wide class of contact models. Among this class, we identify a simple, effective contact model, which provides an efficient tool to study the transport through extended weakly-doped graphitic systems.