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Theoretical Investigations Of Quantum Transport Through Carbon Nanotube Devices

Author

Listed:
  • C. ROLAND

    (Department of Physics, North Carolina State University, Raleigh, NC 27695, USA)

  • M. BUONGIORNO NARDELLI

    (Department of Physics, North Carolina State University, Raleigh, NC 27695, USA)

  • H. GUO

    (Department of Physics and Center for the Physics of Materials, McGill University, Montreal, PQ Canada H3A 2T8, Canada)

  • H. MEHREZ

    (Department of Physics and Center for the Physics of Materials, McGill University, Montreal, PQ Canada H3A 2T8, Canada)

  • J. TAYLOR

    (Department of Physics and Center for the Physics of Materials, McGill University, Montreal, PQ Canada H3A 2T8, Canada)

  • J. WANG

    (Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China)

  • Y. WEI

    (Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China)

Abstract

By combining a nonequilibrium Green's function analysis with a standard tight-binding model, we have investigated quantum transport through carbon nanotube devices. For finite-sized nanotubes, transport is dominated by resonant tunneling, with the conductance being strongly dependent on the length of the nanotubes. Turning to nanotube devices, we have investigated spin-coherent transport in ferromagnetic–nanotube–ferromagnetic devices and nanotube-superconducting devices. The former shows a significant spin valve effect, while the latter is dominated by resonant Andreev reflections. In addition, we discuss AC transport through carbon nanotubes and the role of photon-assisted tunneling.

Suggested Citation

  • C. Roland & M. Buongiorno Nardelli & H. Guo & H. Mehrez & J. Taylor & J. Wang & Y. Wei, 2000. "Theoretical Investigations Of Quantum Transport Through Carbon Nanotube Devices," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 7(05n06), pages 637-642.
  • Handle: RePEc:wsi:srlxxx:v:07:y:2000:i:05n06:n:s0218625x00000774
    DOI: 10.1142/S0218625X00000774
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