Electromechanical instability in suspended carbon nanotubes
Artikel i vetenskaplig tidskrift, 2005

We have theoretically investigated electromechanical properties of freely suspended carbon nanotubes when a current is injected into the tubes using a scanning tunneling microscope. We show that a shuttle-like electromechanical instability can occur If the bias voltage exceeds a dissipation-dependent threshold value. An instability results in large amplitude vibrations of the carbon nanotube bending mode, which modify the current-voltage characteristics of the system. © 2005 American Chemical Society.

Quantum theory

Capacitance

Oscillations

Mathematical models

Current voltage characteristics

Electric resistance

Scanning tunneling microscopy

Electrochemistry

Electromechanical devices

Electric potential

Vibrations (mechanical)

Carbon nanotubes

Elastic moduli

Författare

Magnus Jonsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 5 1165-1169

Ämneskategorier

Fysik

DOI

10.1021/nl050531r