Condensed Matter Seminar Series
Electrical Measurements of
Individual Single-Wall Carbon Nanotubes
University of Warwick
Thursday, September 7, 1:30pm,
|The results of recent experiments
on transport through individual single walled nanotubes and nanotube bundles
will be reviewed. The list of phenomena observed in these 1D electronic
conductors already includes 1D quantum dots, Luttinger-liquid behavior,
transistor action and 1D Schottky diodes, ballistic transport, current
limiting, superconductivity, chemical doping, and electromechanical coupling.
In our studies, we find that nanotube quantum dots are in some ways more
?ideal? than semiconductor quantum dots, but in other ways very different.
With metallic contacts, our tubes resemble diffusive quantum wires.
In the intermediate contact regime, cotunneling and Kondo physics can dominate.
We also look at the effect of the substrate on transport through tubes.