title: Energy dissipation in gigahertz oscillators from multiwalled carbon nanotubes.
abstract: 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.
authors.affiliation: Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. wlguo@nuaa.edu.cn
authors.forename: Wanlin
authors.initials: W
authors.lastname: Guo
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Guo
authors.forename: Huajian
authors.initials: H
authors.lastname: Gao
authors.forename: Quanshui
authors.initials: Q
authors.lastname: Zheng
authors.forename: Wenyu
authors.initials: W
authors.lastname: Zhong