REDUCED CARRIER COOLING AND THERMALIZATION IN SEMICONDUCTOR QUANTUM WIRES

[摘要] By using a Monte Carlo analysis of the carrier relaxation in GaAs quantum wires following laser photoexcitation, we show that carrier cooling due to phonon emission and internal thermalization due to electron-electron interaction are significantly decreased with respect to bulk systems. This decreased thermalization is mainly attributed to the reduced efficiency of intersubband processes and to the reduced effect of electron-electron intrasubband scattering.

[关键词] ELECTRON;SCATTERING;RELAXATION;GAAS