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arXiv · 1210.1934

Chiral Symmetry and Many-Body Effect in Multilayer Graphene

Yuji Hamamoto·Tohru Kawarabayashi·Hideo Aoki·Yasuhiro Hatsugai
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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.

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Yuji Hamamoto, Tohru Kawarabayashi, Hideo Aoki, Yasuhiro Hatsugai. 2012-10-06. Chiral Symmetry and Many-Body Effect in Multilayer Graphene. https://doi.org/10.1088/1742-6596/456/1/012013

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