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Title: Correlations in hexagonal lattice systems : application to carbon nanotubes
Authors: Czajka, Katarzyna
Maśka, Maciej M.
Keywords: elektroniczna struktura materiałów w nanoskali; metodologia obliczeniowa; nanorurki węglowe
Issue Date: 2004
Citation: Acta Physica Polonica A, Vol. 106, nr 5 (2004), s. 703-707
Abstract: We present exact diagonalization studies of two-dimensional electron gas on hexagonal lattice. Using Lanczos method we analyze the influence of the Coulomb correlations on the density of states and spectral functions. Choosing appropriate boundary conditions we simulate the geometry of a single wall carbon nanotube. In particular, integration over the boundary condition in one direction and summation in the other one allows us to perform cluster calculations for a tube-like system with a finite diameter and infinite length.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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