Physics – Condensed Matter – Materials Science
Scientific paper
2005-05-23
Physics
Condensed Matter
Materials Science
Scientific paper
10.1103/PhysRevLett.96.086804
The electronic and vibrational density of states of a semiconducting carbon nanotube in a crossed junction was investigated by elastic and inelastic scanning tunneling spectroscopy. The strong radial compression of the nanotube at the junction induces local metallization spatially confined to a few nm. The local electronic modifications are correlated with the observed changes in the radial breathing and G-band phonon modes, which react very sensitively to local mechanical deformation. In addition, the experiments reveal the crucial contribution of the image charges to the contact potential at nanotube-metal interfaces.
Burghard M.
Kern Klaus
Schneider Alexander M.
Vitali Lucia
Wahl Peter
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