Browsing by Author "Bennett, C. R."
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Bandgap renormalization in quantum wire systems: dynamical correlations and multisubband effects
Güven, K.; Tanatar, Bilal; Bennett, C. R. (Institute of Physics Publishing, 2000)We study the bandgap renormalization m a model semiconductor quantum wire due to the exchangecorrelation effects among the charge carriers. We construct a twosubband model for the quantum wire, and employ the GWapproximation ... 
Confined optical phonon effects on the band gap renormalization in quantum wire structures
Bennett, C. R.; Güven, K.; Tanatar, Bilal (Elsevier Science, 1999)We consider the different approximations for the bandgap renormalization (BGR) within the random phase approximation (RPA), the quasistatic limit and the plasmonpole approximation, and compare with the full result. We ... 
Confinedphonon effects in the bandgap renormalization of semiconductor quantum wires
Bennett, C. R.; Güven, K.; Tanatar, Bilal (American Physical Society, 1998)We calculate the bandgap renormalization in quasionedimensional semiconductor quantum wires including carriercarrier and carrierphonon interactions. We use the quasistatic approximation to obtain the selfenergies at ... 
Dynamical screening effects in a coupled quasionedimensional electronphonon system
Bennett, C. R.; Constantinou, N. C.; Tanatar, Bilal (Institute of Physics Publishing Ltd., 1995)A fully dynamical and finitelempel'dture study of the electron momenhum relaxation rate and mean free path in a coupled system of electrons and bulk LO phonons in a quantum wire structure is presented. Electmnelectron ... 
Dynamical screening effects in hotelectron scattering from electronhole plasma and LOphonon modes in quantum wires
Bennett, C. R.; Tanatar, Bilal; Constantinou, N. C. (Elsevier, 1996)We present a fully dynamical and finite temperature study of the hotelectron momentum relaxation rate and the power loss in a coupled system of electronhole plasma and bulk LOphonons in a quantum wire structure. ... 
Effect of crosssectional geometry on the RPA plasmons of quantum wires
Bennett, C. R.; Tanatar, Bilal; Constantinou, N. C.; Babiker, M. (Pergamon Press, 1994)The effect of crosssectional geometry on both the intrasubband plasmon and intersubband plasmon of a quantum wire is investigated within a twosubband RPA scheme. Exact analytical electronic wavefunctions for circular, ... 
Energy relaxation via confined and interface phonons in quantumwire systems
Bennett, C. R.; Tanatar, Bilal (American Physical Society, 1997)We present a fully dynamical and finite temperature study of the hotelectron momentum relaxation rate and the power loss in a coupled system of electrons and confined and interface phonons in a quantumwire structure. ... 
Screening effects on the confined and interface polarons in cylindrical quantum wires
Tanatar, Bilal; Güven, K.; Bennett, C. R.; Constantinou, N. C. (American Physical Society, 1996)We study the contribution of confined and interface phonons to the polaron energy in quantumwell wires. We use a dispersionless, macroscopic continuum model to describe the phonon confinement in quantum wires of circular ...