[Host: Yongsoon Yoon]
I will describe our fabrication and characterization of
torsional oscillators which use multi-walled carbon nanotubes (MWNTs)
as the torsion springs. We have, through direct force measurements with
a scanning probe microscope, measured the torsional properties of
individual MWNTs. We discovered a surprising increase in the torsional
stiffness of the MWNTs with repeated deflections. We have also
actuated the devices electrostatically, demonstrating
a self-contained electromechanical device.
We use optical interferometry to measure the on-resonance
behavior of the electrostatically-driven devices.
Condensed Matter Seminar
Thursday, February 12, 2004
Physics Building, Room 204
Note special time.
Note special room.
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