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Title of article :
Low-energy electronic structures of nanotube–graphene hybrid carbon systems
Author/Authors :
Y.H. Ho، نويسنده , , Y.H. Chiu، نويسنده , , J.M. Lu، نويسنده , , M.F. Lin، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2009
Pages :
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Abstract :
Electronic structures of nanotube–graphene hybrid carbon systems are calculated by the tight-binding model. The Lennard-Jones potential is used to determine the optimal geometry between nanotubes and a monolayer graphene. The periodic alignment of nanotubes on graphene results in quasi-one-dimensional physical phenomena. The low-frequency energy dispersions are significantly influenced by the interlayer interactions, such as the removal of subband degeneracy, creation of extra band-edge states, and modulation of energy gaps. The composite systems could be either metals or semiconductors according to the alignment and geometry of nanotubes.
Keywords :
Graphene , Electronic structure , Nanotube
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Serial Year :
Link To Document :