RUS  ENG
Full version
JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2015 Volume 102, Issue 2, Pages 125–129 (Mi jetpl4688)

This article is cited in 4 papers

CONDENSED MATTER

Anisotropic flat bands on the surface of multilayer graphenelike lattice

A. A. Zyuzinab, V. A. Zyuzinc

a Department of Physics, University of Basel, CH-4056 Basel, Switzerland
b Ioffe Physico-Technical Institute of the RAS, 194021 St. Petersburg, Russia
c Department of Physics, University of Florida, FL 32611-8440 Gainesville, USA

Abstract: The fermionic energy spectrum on the surface of the multilayer honeycomb lattice with rhombohedral stacking has topologically protected flat bands. It is shown that topological phase transition occurs in the anisotropic multilayer graphene-like structure with strongly anisotropic intra-layer coupling, at which two flat bands with opposite chirality merge into one and split, opening up a gap in the energy spectrum, depending on the anisotropy of the intralayer hopping. The dispersion of the flat bands of the multilayer is anisotropic and the density of states is more singular in the vicinity of the transition.

Received: 15.06.2015

Language: English

DOI: 10.7868/S0370274X15140106


 English version:
Journal of Experimental and Theoretical Physics Letters, 2015, 102:2, 113–117

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024