Electronic states in carbon nanotube quantum-dots

dc.creator	Rocha C. G.
dc.creator	Dargam T. G.
dc.creator	Muniz R. B.
dc.creator	Latgé A.
dc.date	2002
dc.date.accessioned	2013-06-01T09:11:17Z
dc.date.available	2013-06-01T09:11:17Z
dc.date.issued	2013-06-01
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200051
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=2a&spage=424
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/7727
dc.description	We present a theoretical study on local electronic properties of quantum-dot nanotubes formed by connecting pure semiconducting and metallic nanotubes via appropriate junctions. The junctions are formed by introducing pair-defects composed by heptagon and pentagon along the axial direction of pure nanotubes. We investigate the dependence of the confined electronic states with the characteristic sizes of the quantum dot taking it account different based-nanotube heterostructures. Quantum-well like and interface states are characterized by investigating the spatial dependence of the local density of states of the discrete levels. We follow the Green function formalism and adopt real-space renormalization techniques in the derivation of local density of states.
dc.publisher	Sociedade Brasileira de Física
dc.source	Brazilian Journal of Physics
dc.title	Electronic states in carbon nanotube quantum-dots

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