Edge effects in graphene nanostructures: From multiple reflection expansion to density of states

URN to cite this document:: urn:nbn:de:bvb:355-epub-206761
DOI to cite this document:: 10.5283/epub.20676

Wurm, Jürgen ; Richter, Klaus ; Adagideli, İnanç

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arXiv PDF (06.08.2011)
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arXiv PDF (21.04.2011)
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Date of publication of this fulltext: 27 Apr 2011 07:15

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Abstract

We study the influence of different edge types on the electronic density of states of graphene nanostructures. To this end we develop an exact expansion for the single particle Green's function of ballistic graphene structures in terms of multiple reflections from the system boundary, that allows for a natural treatment of edge effects. We first apply this formalism to calculate the average ...