Chiral Symmetry and Many-Body Effect in Multilayer Graphene
Mesoscale and Nanoscale Physics
2015-06-11 v1
Abstract
Influence of the chiral symmetry on the many-body problem in multilayer graphene in magnetic fields is investigated. For a spinless electron model on the honeycomb lattice the many-body ground state is shown to be a doubly-degenerate chiral condensate irrespective of the number of layers. The energy spectrum calculated numerically with the exact diagonalization method reveals for ABC-stacked multilayer graphenes that the many-body gap decreases monotonically with the number of layers.
Keywords
Cite
@article{arxiv.1210.1934,
title = {Chiral Symmetry and Many-Body Effect in Multilayer Graphene},
author = {Yuji Hamamoto and Tohru Kawarabayashi and Hideo Aoki and Yasuhiro Hatsugai},
journal= {arXiv preprint arXiv:1210.1934},
year = {2015}
}
Comments
5 pages, 3 figures, proceeding of the 20th International Conference on High Magnetic Fields in Semiconductor Physics (HMF-20)