Excitonic properties of armchair graphene nanoribbons from exact diagonalization of the Hubbard model
نویسندگان
چکیده
منابع مشابه
Excitonic properties of hydrogen saturation-edged armchair graphene nanoribbons.
First-principle density functional theory calculations with quasiparticle corrections and many body effects are performed to study the electronic and optical properties of armchair graphene nanoribbons (AGNRs) with variant edges saturated by hydrogen atoms. The "effective width" method associated with the reported AGNR family effect is introduced to understand the electronic structures. The met...
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A. V. Rozhkov,1,2 S. Savel’ev,2,3 and Franco Nori2,4 1Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, 125412, Moscow, Russia 2Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan 3Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom 4Department of Physics, Cent...
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: In this work, we present a theoretical study of the transport properties of two finite and parallel armchair graphene nanoribbons connected to two semi-infinite leads of the same material. Using a single Π-band tight binding Hamiltonian and based on Green's function formalisms within a real space renormalization techniques, we have calculated the density of states and the conductance of these...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2012
ISSN: 1367-2630
DOI: 10.1088/1367-2630/14/5/053047