Abstract Submitted to the NT'05-Logo NANOTUBE'05 Conference:

A Three Terminal Carbon Nanotube Relay

S.W. Lee1, M. Sveningsson2, Y.W. Park1, E.E.B. Campbell2

1 School of Physics and NSI-NCRC, Seoul National University, Seoul 151-747, South Korea
2 Dept. of Physics, Göteborg University, SE-41296 Göteborg, Sweden

Contact e-mail: f3aec@fy.chalmers.se

A carbon nanotube nanorelay has been fabricated. A freely hanging MWNT is attached to a source electrode. By applying a voltage to a gate electrode situated below the nanotube, the nanotube is induced to bend until it makes contact with a drain electrode [1]. The operating characteristics will be described and compared with theoretical predictions. Two operating modes have been studied. The first, "contact mode", requires physical contact between the nanotube and the drain electrode and shows hysteretic behaviour. The second "non-contact" mode uses field emission to make electrical contact between the nanotube and the drain. In this case we observe a self-annealing behaviour at the source electrode on operation and the hysteresis is suppressed.

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