Condensed Matter Physics Seminar

Thursday, March 2, 2000, 2 p.m.
Plant Sciences Building, Room 1130

Connecting Carbon Nanotubes

Michael Fuhrer

(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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