Browsing by Author "Rabiu, M."

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  • Anomalous viscosity of vortex hall states in graphenea) 
    Rabiu, M.; Mensah, S. Y.; Ibrahim, S. Y.; Abukari, S. S. (University of Cape Coast, 2015)
    We study temperature effect on anomalous viscosity of Graphene Hall fluid within quantum many vortex hydrodynamics. The commonly observed filling fractions, ν in the range 0 < ν < 2 is considered. An expression for anomalous ...
  • Appearance of negative differential conductivity in graphene nanoribbons at high-harmonicsa) 
    Rabiu, M.; Mensah, S. Y.; Abukari, S. S. (University of Cape Coast, 2012)
    We theoretically study current dynamics of graphene nanoribbons subject to bias dc and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differential conductivity. Negative differential ...
  • General scattering mechanism and transport in graphene 
    Rabiu, M.; Mensah, S. Y.; Abukari, S. S. (University of Cape Coast, 2011)
    Using quasi-time dependent semi-classical transport theory in RTA, we obtained coupled current equations in the presence of time varying field and based on general scattering mechanism τ ∝ Eβ .We find that close to the ...
  • Generation and amplification of terahertz radiation in carbon nanotubes 
    Abukaria, S. S.; Mensah, S.Y.; Mensah, N. G.; Adud, K. W.; Rabiu, M.; Dompreh, K. A.; Twum, A. (University of Cape Coast, 2012)
    We investigate theoretically the feasibility of generation and amplification of terahertz radiation in aligned achiral carbon nanotubes (zigzag and armchair) in comparison with a super lattice in the presence of a constant ...
  • High frequency conductivity in carbon nanotubes 
    Abukari, S. S.; Mensah, S. Y.; Mensah, N. G.; Adu, K. A.; Rabiu, M.; Twum, A. (University of Cape Coast, 2012-12-05)
    We report on theoretical analysis of high frequency conductivity in carbon nanotubes. Using the kinetic equation with constant relaxation time, an analytical expression for the complex conductivity is obtained. The real ...
  • High frequency conductivity in carbon nanotubes 
    Abukari, S. S.; Mensah, S. Y.; Mensah, N. G.; Adu, K. A.; Rabiu, M.; Twum, A. (University of Cape Coast, 2012-12-05)
    We report on theoretical analysis of high frequency conductivity in carbon nanotubes. Using the kinetic equation with constant relaxation time, an analytical expression for the complex conductivity is obtained. The real ...
  • Hydrodynamic study of edge spin-vortex excitations of fractional quantum hall fluid 
    Rabiu, M.; Mensah, S. Y.; Seini, I. Y.; Abukari, S. S. (University of Cape Coast, 2018)
    We undertake a theoretical study of edge spin-vortex excitations in fractional quantum Hall fluid. This is done in view of quantised Euler hydrodynamics theory. The dispersions of true excitations for fractions within 0 ≤ ...
  • Laser stimulated thermal conductivity in chiral carbon nanotube 
    Twum, A.; Mensah, S. Y.; Mensah, N. G.; Dompreh, K. A.; Abukari, S.S.; Rabiu, M. (University of Cape Coast, 2012-08-04)
    An investigation of laser stimulated thermal conductivity in chiral CNT is presented. The thermal conductivity of a chiral CNT is calculated using a tractable analytical approach. This is done by solving the Boltzmann ...
  • Magnetoplasmon excitations at graphene ortex hall fluid edge 
    Rabiu, M.; Mensah, S. Y.; Seini, I. Y.; Abukari, S. S. (University of Cape Coast, 2015)
    We investigate magnetoplasmon dynamics localized on the edges of graphene ortex Hall fluid. The ortex matter captures an anomalous term that causes ortex localization near fluid boundary and creates a double boundary ...
  • Negative high-harmonic differential conductivity in graphene nanoribbons 
    Rabiu, M.; Mensah, S. Y.; Abukari, S. S. (University of Cape Coast, 2012)
    We theoretically study current dynamics of graphene nanoribbons subject to bias and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differential conductivity. Negative differential ...
  • Terahertz generation and amplification in graphene nanoribbons in multi-frequency electric fields 
    Rabiu, M. (University of Cape Coast, 2012)
    We study theoretically a multi-frequency response of electrons in confined graphene subject to dc-ac driven fields. We explore the possibility for using graphene nanoribbons (GNRs) to generate and amplify terahertz (THz) ...