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http://arxiv.org/abs/cond-mat/9911381

has been cited by the following article:

• TITLE: Hypersound Absorption of Acoustic Phonons in a Degenerate Carbon Nanotube

  AUTHORS: K. A. Dompreh, N. G. Mensah, S. Y. Mensah, S. S. Abukari, F. Sam, R. Edziah

  KEYWORDS: Carbon Nanotube, Hyperound, Absorption, Acoustoelectric

  JOURNAL NAME: Graphene, Vol.4 No.3, July 31, 2015

  ABSTRACT: Absorption of acoustic phonons was studied in degenerate Carbon Nanotube (i.e. where the electrons are found close to the Fermi level). The calculation of the hypersound absorption coefficient ()was done in the regime where (q is the acoustic phonon number and l is the electron mean free path). At T = 10K and θ > 0 (θ being scattering angle), the dependence of on acoustic wave number (q), frequency (ωq), and , (Vs and VD being the speed of sound and the drift velocity respectively) were analysed numerically at n = 0,±1,±2 (where n is an integer ) and presented graphically. It was observed that when γ VD = 1.1Vs which occurred at E = 51.7V·cm-1. In the second harmonics, (n = ±2), the absorption obtained was compared to experimental measurement of acoustoelectric current via the Weinreich relation and the results qualitatively agreed with each other.