Hofstadter butterflies of bilayer graphene

URN to cite this document:: urn:nbn:de:bvb:355-epub-18968
DOI to cite this document:: 10.5283/epub.1896

Nemec, Norbert ; Cuniberti, Gianaurelio

Preview

PDF
(764kB)

Date of publication of this fulltext: 05 Aug 2009 13:34

Alternative links to fulltext:DOI Arxiv Publisher

Details

Preview

Export bibliographical data

Abstract

We calculate the electronic spectrum of bilayer graphene in perpendicular magnetic fields non-perturbatively. To accomodate arbitrary displacements between the two layers, we apply a periodic gauge based on singular flux vortices of phase $2\\pi$. The resulting Hofstadter-like butterfly plots show a reduced symmetry, depending on the relative position of the two layers against each other. The ...