NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2013, 4 (4), P. 490–495
APPLICATION OF GREEN’S FUNCTION APPROACH TO ELECTRONIC STRUCTURE OF CARBON NANOCYLINDERS
J. Smotlacha – Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Brehova 7, 110 00 Prague, Czech Republic; smota@centrum.cz
R. Pincak – Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47,043 53 Kosice, Slovak Republic; pincak@saske.sk
The local density of states of the carbon nanostructures can be calculated in different ways. Here, we present the Haydock recursion method which, using the Green’s function approach, transforms the given surface into a chain of equivalent sites. Then, using the continued fraction, we apply this procedure on the surface of the nanocylinders.
Keywords: graphene, carbon nanostructures, disclination, Green function, continued fraction.
PACS 73.22.Pr; 81.05.ue