Pseudo-magnetic field distribution and pseudo-Landau levels in suspended graphene flakes

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Abstract

Combining the tight-binding approximation and linear elasticity theory for a planar membrane, we investigate stretching of a graphene flake assuming that two opposite edges of the sample are clamped by the contacts. We show that, depending on the aspect ratio of the flake and its orientation, gapped states may form in the membrane in the vicinity of the contacts. This gap in the pre-contact region should be the biggest for the armchair orientation of the flake and W/L≲1.
Original languageEnglish
Pages (from-to)1442-1445
Number of pages4
JournalSolid State Communications
Volume152
Issue number15
DOIs
Publication statusPublished - 1 Aug 2012

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