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Tunneling transport and spectroscopy in carbon nanotube quantum dots

J. Chem. Phys. 130, 224503 (2009); doi:10.1063/1.3148035

Published 11 June 2009

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David E. Logan and Martin R. Galpin
Department of Chemistry, Physical and Theoretical Chemistry, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom
This paper provides a theoretical description of sequential tunneling transport and spectroscopy, in carbon nanotube quantum dots weakly tunnel coupled to metallic leads under a voltage bias. The effects of Coulomb blockade charging, spin-orbit fine structure, and orbital- and spin-Zeeman effects arising from coupling to applied magnetic fields are considered; and the dependence of the conductance upon applied gate voltage, bias voltage, and magnetic fields is determined. The work is motivated by recent experiments on ultraclean carbon nanotube dots [Kuemmeth et al., Nature (London) 452, 448 (2008)], to which comparison is made. ©2009 American Institute of Physics
History: Received 28 February 2009; accepted 11 May 2009; published 11 June 2009
Permalink: http://link.aip.org/link/?JCPSA6/130/224503/1
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KEYWORDS and PACS

Keywords
PACS
  • 73.40.Gk
    Tunneling (electronic transport)
  • 61.46.Fg
    Structure of nanotubes
  • 73.23.Hk
    Coulomb blockade; single-electron tunneling
  • 71.70.Ej
    Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect (condensed matter)
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
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