Eur. Phys. J. B (2013) 86: 107
https://doi.org/10.1140/epjb/e2013-30341-0

Regular Article

Edge states of graphene bilayer strip

Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04353 Kosice, Slovak Republic

^a e-mail: pincak@saske.sk

Received: 24 April 2012
Received in final form: 30 July 2012
Published online: 20 March 2013

Abstract

The electronic structure of the zig-zag bilayer strip is analyzed. The electronic spectra of the bilayer strip is computed. The dependence of the edge state band flatness on the bilayer width is found. The density of states at the Fermi level is analytically computed. It is shown that it has the singularity which depends on the width of the bilayer strip. There is also asymmetry in the density of states below and above the Fermi energy.