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Quantum Transport in Nanotube-Based Structures

Published online by Cambridge University Press:  15 March 2011

M. Buongiorno Nardelli,
J.-L. Fattebert and
J. Bernholc
M. Buongiorno Nardelli
Affiliation:
Department of Physics, North Carolina State University, Raleigh, NC.
J.-L. Fattebert
Affiliation:
Center for Applied Scientific Computing, Lawrence Livermore National Laboratory, CA.
J. Bernholc
Affiliation:
Department of Physics, North Carolina State University, Raleigh, NC.
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Abstract

Using state of the art quantum calculations, we have studied the electronic and transport properties of a variety of nanotube-based structures relevant for the design of nanoscale electronic devices. We have investigated the conductance of carbon nanotubes under mechanica distortions such as bending, defects and tube-tube contacts, and analyzed the behavior of carbon nanotube-metal contacts with the aim of explaining the anomalously large contact resistance observed in nanotube devices. Our results provide a clear interpretation of recent experimenta findings and suggest avenues for the use of carbon nanotubes in electromechanical systems.

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