Condensed Matter Physics Seminar
Thursday, March 2, 2000, 2 p.m.
Plant Sciences Building, Room 1130
Connecting Carbon Nanotubes
(University of California at Berkeley)
Abstract: Single-walled carbon nanotubes (SWNTs) have proven
an ideal system for studying the properties of one-dimensional conductors,
and are also considered excellent candidates for future molecule-scale
electronic technologies. I will review electronic transport experiments
in individual SWNTs, which have been fruitful in studying quantum dot and
Luttinger liquid physics. In order to make the connection between
individual SWNTs and multi-terminal devices, we have fabricated devices
consisting of two crossed nanotubes, with electrical contacts on each end
of each nanotube. Molecular-scale metallic branching interconnects
and metal-semiconductor devices containing only a few thousand atoms may
be constructed, and can be surprisingly well understood theoretically.
I will also discuss electrostatic force microscopy as a powerful technique
for real-space imaging of the electronic properties of nanoscale circuits.
Host: Ellen Williams
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