P. C. Divari

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In this paper we present calculations on the density of states (DOS) and the magnetocapacitance of the 2DEG in a MODFET under two-dimensional (2D) weak periodic modulation in the presence of a perpendicular magnetic field. Adopting a Gaussian broadening of magnetic-field-dependent width, we present explicit and simple expressions for the DOS, valid for the(More)
The effect of Rasba spin–orbit interaction (SOI) on the magnetocapacitance of the 2DEG in a MODFET is investigated. We present calculations on the density of states (DOS) of the 2DEG in a MODFET under the influence of both Rasba SOI and weak twodimensional periodic modulation. Adopting a Gaussian broadening of magnetic-field-dependent width, we present a(More)
The thermopower of ballistic graphene ribbons, at finite temperatures, is studied using linear response theory and the Landauer formalism. The dependence of thermopower on temperature and chemical potential is investigated and the obtained results are qualitatively in agreement with many features recently observed in thermoelectric measurements on high(More)
We present calculations on the magnetocapacitance of the twodimensional electron gas in a lateral semiconductor superlattice under two-dimensional weak periodic potential modulation in the presence of a perpendicular magnetic field. Adopting a Gaussian broadening of magnetic-field-dependent width in the density of states, we present explicit and simple(More)
We present an analytical model based on linear response theory and the Landauer formalism in order to calculate the electrical conductivity, thermopower and thermal conductivity of ballistic graphene ribbons and clarify both the temperature and Fermi-level dependences. The electronic figure of merit ZT<inf>el</inf> as an upper limit of the thermoelectric(More)
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