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Hofstadter butterflies of bilayer graphene

Nemec, Norbert and Cuniberti, Gianaurelio (2007) Hofstadter butterflies of bilayer graphene. Physical Review B 75, 201404(R).

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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 ...

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Item Type:Article
Date:2007
Institutions:Physics > Institute of Theroretical Physics > Retired Professors > Group Gianaurelio Cuniberti
Projects:EU Grant: Carbon nanotube devices at the quantum limit, Volkswagen Stiftung: Molecular Computing
Identification Number:
ValueType
10.1103/PhysRevB.75.201404DOI
cond-mat/0612369arXiv ID
Related URLs:
URLURL Type
http://arxiv.org/abs/cond-mat/0612369Preprint
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Redakteur Physik
Deposited On:20 Mar 2007
Last Modified:13 Mar 2014 10:08
Item ID:1896
Owner Only: item control page

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