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2011 | 120 | 5 | 839-841
Article title

Coupling between Electronic and Vibrational Excitations in Carbon Nanotubes Filled with C_{60} Fullerenes

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EN
Abstracts
EN
We investigate the low-temperature electron transport through C_{60} peapods, which are carbon nanotubes encapsulating C_{60} fullerenes. We find that the temperature dependence of the Coulomb blockade oscillations in peapod quantum dots deviates from conventional Breit-Wigner behavior, showing signatures of the Franck-Condon blockade of conductance. This indicates the presence of a coupling between electronic states and vibrational excitations. Unlike for suspended empty nanotubes, these are not intrinsic vibrational modes of the tube but mechanical vibrations of the encapsulated fullerenes that affect the electronic transport. Fullerene peapods thus emerge as a new class of nanoelectromechanical systems.
Keywords
Contributors
author
  • Nano-Science Center & Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
author
  • Department of Physics, Lancaster University, Lancaster LA1 4YB, UK
  • Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden
author
  • Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden
  • B.I. Verkin Institute for Low Temperature Physics and Engineering, 61103 Kharkov, Ukraine
author
  • Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden
author
  • Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden
  • School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
  • School of Physics, Konkuk University, Seoul 143-701, Korea
author
  • CEMES-CNRS, B.P. 94347, F-31055 Toulouse Cedex 4, France
author
  • CEMES-CNRS, B.P. 94347, F-31055 Toulouse Cedex 4, France
author
  • Nano-Science Center & Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv120n503kz
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