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Friedel-like oscillations in carbon nanotube quantum dots

AuthorsAyuela, Andrés ; Jaskólski, W.; Pelc, M. ; Santos, Hernán; Chico, Leonor
KeywordsCarbon nanotubes
Green's function methods
Interface states
Quantum dots
Tight-binding calculations
Issue Date30-Sep-2008
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 93(13): 133106 (2008)
AbstractThe interface states of all-metallic carbon nanotube quantum dots are studied based on a tight-binding approach and a Green's function matching technique. We have found that depending on the type of metallic tube, the energy of interface states may show an oscillatory behavior. We identify these as steamming from Friedel oscillations. We comment on the possible implications of this finding on other physical properties, such as stability during the growth of nanotube junctions and magnetic interaction through carbon nanotubes.
Description3 pages, 1 figure.-- PACS nrs.: 73.21.La, 73.22.-f, 73.20.At, 71.15.Ap.-- Presented as poster communication to TNT 2008: Trends in NanoTechnology (Oviedo, Spain, Sep 1-5, 2008).
Publisher version (URL)http://dx.doi.org/10.1063/1.2988644
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