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Electron–phonon interaction in nanowires: A Monte Carlo study of the effect of the field

✍ Scribed by E. Atanassov; T. Gurov; A. Karaivanova; M. Nedjalkov; D. Vasileska; K. Raleva

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
253 KB
Volume
81
Category
Article
ISSN
0378-4754

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✦ Synopsis

The femtosecond dynamics of highly non-equilibrium, confined carriers is analyzed within a Monte Carlo approach. The physical process considered corresponds to a locally excited or injected into a semiconductor nanowire distribution of heated carriers, which evolve under the action of an applied electric field. The carriers are cooled down by dissipation processes caused by phonons. The process is described by a quantum-kinetic equation which generalizes the classical Boltzmann equation with respect to two classical assumptions, namely for temporal and spatial locality of the carrier-phonon interaction. We investigate the effect of the field on the electron-phonon interaction-the intra-collisional field effect (ICFE). A Monte Carlo method for simulation of the considered process has been utilized. Simulation results for carrier evolution in a GaAs nanowire are obtained and analyzed for phenomena related to the ICFE.

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