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Oscillatory behavior of gigahertz oscillators based on multiwalled carbon nanotubes
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10.1063/1.1942648
/content/aip/journal/jap/98/1/10.1063/1.1942648
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/1/10.1063/1.1942648
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Snapshots of a complete oscillation period of the oscillator.

Image of FIG. 2.
FIG. 2.

Variation of the oscillatory frequency at the early stage vs the number of outer tubes.

Image of FIG. 3.
FIG. 3.

Variation of the oscillatory behavior of the inner tube with oscillatory time. (a) The oscillatory position with time, (b) the oscillatory velocity with time, (c) the resultant van der Waals force with time, and (d) the average atomic potential with time. The single-outer-walled oscillator is the type and the double-outer-walled oscillator is the type.

Image of FIG. 4.
FIG. 4.

Variation of the oscillatory position vs time for the , , and oscillators. The first and third oscillators suffer lateral rocking motion, causing breakup failures at position ; only the second oscillator gives rise to a stable oscillation.

Image of FIG. 5.
FIG. 5.

The failure process of the oscillator. (a) An initial smooth motion, (b) a small rocking motion starts inside the outer tubes, (c) the rocking amplitude diverges, and (d) the final failure.

Image of FIG. 6.
FIG. 6.

Rocking motion starts during the inner tube extrusion process for the oscillator.

Image of FIG. 7.
FIG. 7.

Variation of the oscillatory behavior with oscillatory time for three different helicity angles of the outer tubes. (a) The oscillatory position with time and (b) the oscillatory velocity with time.

Image of FIG. 8.
FIG. 8.

Variation of the static van der Waals potential energy with the extrusion distance.

Image of FIG. 9.
FIG. 9.

Variation of the oscillatory behavior of the inner tube with oscillatory time at three different extrusion distances. (a) The oscillatory position with time, (b) the oscillatory velocity with time, (c) the resultant van der Waals force with time, and (d) the average atomic potential with time.

Image of FIG. 10.
FIG. 10.

Variation of the oscillatory frequency at the early stage vs the extrusion distance.

Image of FIG. 11.
FIG. 11.

Variation of the oscillatory behavior with oscillatory time for three different lengths of the outer tubes. (a) The oscillatory position with time and (b) the oscillatory velocity with time.

Image of FIG. 12.
FIG. 12.

Variation of the oscillatory frequency at the early stage vs the length of the outer tubes.

Image of FIG. 13.
FIG. 13.

Comparison of the oscillatory position vs time curves at different boundary conditions for the outer tubes.

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/content/aip/journal/jap/98/1/10.1063/1.1942648
2005-07-01
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Oscillatory behavior of gigahertz oscillators based on multiwalled carbon nanotubes
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/1/10.1063/1.1942648
10.1063/1.1942648
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