Phys. Rev. Lett. 91, 125501 (2003) [4 pages]Energy Dissipation in Gigahertz Oscillators from Multiwalled Carbon NanotubesReceived 5 March 2003; published 15 September 2003 Using atomistic models and molecular dynamics simulations, interlayer corrugation and resistant force in a biwalled carbon nanotube are shown to be strongly dependent upon the morphology combination of the bitube. Consequently, energy dissipation in a commensurate (e.g., armchair/armchair or zigzag/zigzag) bitube oscillator is found to be much larger than that in an incommensurate (e.g., zigzag/armchair) oscillator, resulting in a decay of oscillation amplitude within a few nanoseconds in the commensurate bitube and several tens of nanoseconds in the incommensurate bitube. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.125501
DOI:
10.1103/PhysRevLett.91.125501
PACS:
61.46.+w, 62.20.Qp, 62.25.+g
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