title: Energy exchanges in carbon nanotube oscillators.
abstract: Energy exchanges between orderly intertube axial motion and vibrational modes are studied for isolated systems of two coaxial carbon nanotubes at temperatures ranging from 300 to 500 K. It is found that the excess intertube van der Waals energy, depleted from the intertube axial motion, is primarily stored in low-frequency mechanical modes of the oscillator for an extended period of time. This constitutes the first computer simulation of a nanomechanical device that exhibits negative friction.
authors: Department of Chemistry, University of Hong Kong, Hong Kong, People's Republic of China.
authors: Yang
authors: Y
authors: Zhao
authors: Chi-Chiu
authors: CC
authors: Ma
authors: Lai-Ho
authors: LH
authors: Wong
authors: Guanhua
authors: G
authors: Chen
authors: Zhiping
authors: Z
authors: Xu
authors: Quanshui
authors: Q
authors: Zheng
authors: Qing
authors: Q
authors: Jiang
authors: Allen T
authors: AT
authors: Chwang