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S. Y. Mensah, “The Negative Differential Effect in a Semiconductor Superlattice in the Presence of an External Electric Field,” Journal of Physics: Condensed Matter, Vol. 4, No. 22, 1992, pp. L325-329. doi:10.1088/0953-8984/4/22/001

has been cited by the following article:

• TITLE: Domain Suppression in the Negative Differential Conductivity Region of Carbon Nanotubes by Applied AC Electric Field

  AUTHORS: Sulemana S. Abukari, Samuel Y. Mensah, Kofi W. Adu, Natalia G. Mensah, Kwadwo A. Dompreh, Anthony Twum, Chales L. Y. Amuah, Matthew Amekpewu, Musah Rabiu

  KEYWORDS: Carbon Nanotubes; Negative Differential Conductivity and Generation of Terahertz Radiation

  JOURNAL NAME: World Journal of Condensed Matter Physics, Vol.2 No.4, November 29, 2012

  ABSTRACT: We study theoretically the electron transport properties in achiral carbon nanotubes under the influence of an external electric field E(t) using Boltzmann’s transport equation to derive the current-density. A negative differential conductivity (NDC) is predicted in quasi-static approximation i.e., ωτ 0 is equal to the amplitude of the AC electric field E1. The peak of the NDC intensity occurs at very weaker fields than that of superlattice under the same conditions. The peak intensity decreases and shifts to right with the increase in the amplitude of the ac field. This mechanism suppresses the domain formation and therefore could be used in terahertz frequency generation.