Nemec, Norbert and Cuniberti, Gianaurelio (2007) Hofstadter butterflies of bilayer graphene. PHYSICAL REVIEW B, 75 (20): 201404. ISSN 1098-0121,
Full text not available from this repository.Abstract
We calculate the electronic spectrum of bilayer graphene in perpendicular magnetic fields nonperturbatively. To accommodate 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 split of the zero-energy relativistic Landau level differs by one order of magnitude between Bernal and non-Bernal stacking.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BLOCH ELECTRONS; BERRYS PHASE; GRAPHITE; DEPENDENCE; SPECTRUM; RIBBONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Gianaurelio Cuniberti |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2020 09:43 |
| Last Modified: | 14 Dec 2020 09:43 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32858 |
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