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 6 1165-1169Ämneskategorier
Fysik
DOI
10.1021/nl050531r