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Magnetomotive Insta...
Magnetomotive Instability and Generation of Mechanical Vibrations in Suspended Semiconducting Carbon Nanotubes
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- Nordenfelt, Anders (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
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- Tarakanov, Yury, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gorelik, Leonid, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Shekhter, Robert I., 1947 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
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- Jonson, Mats, 1947 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
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(creator_code:org_t)
- 2010-12-08
- 2010
- English.
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In: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 12:12
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Abstract
Subject headings
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- We investigate the electromechanics of a freely suspended semiconducting carbon nanotube subjected to a magnetic field H in the current-biased regime and show that self-excitation of mechanical nanotube vibrations can occur if H exceeds a critical value Hc of the order of 10–100 mT. The effect can be detected by measuring the magnetic field dependence of the time-averaged voltage drop across the nanotube, which has a singularity at H=Hc. We discuss the applications of the device as an active, tuneable radiofrequency oscillator.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- carbon nanotube
- oscillator
- self oscillation
- magnetomotive instability
- carbon nanotube
Publication and Content Type
- ref (subject category)
- art (subject category)
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