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Charge and spin transport in carbon-based molecular devices (invited talk)
R. Gutiérrez
Advances in Molecular Electronics: From molecular materials to single molecule devices
2004.02.23-27; Dresden, Germany
| I review electron transport studies on carbon-based
molecular devices. Charge transport is investigated in
molecular junctions consisting of open and capped
metallic carbon nanotubes acting as electrodes which
are bridged by a molecular group. In the second part of
the talk, some recent research on spin transport
through ferromagnetically contacted double-wall carbon
nanotubes will be presented, whereby the giant
magnetoresistance (GMR) is the central quantity to be
discussed. We mainly focus on the sensitivity of charge
and spin transport, as quantified by the linear
conductance and the GMR, respectively, to the details
of the electrode-molecule interface topology. In the
case of spin transport we demonstrate that a simple
tight-binding approach may lead to nontrivial behaviour
as negative GMR and blocking of transport channels.
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Prof. Dr. Gianaurelio Cuniberti
secretariat:
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
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