Observation of quantum confinement effect away from the zone center in a spectroscopic ellipsometry study of the dielectric function of single Al0.3Ga0.7As/GaAs/Al0.3Ga0.7As square quantum wells
- 15 April 1987
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 61 (8) , 2973-2978
- https://doi.org/10.1063/1.337846
Abstract
The dielectric response of molecular‐beam epitaxially grown single Al0.3Ga0.7As/GaAs/Al0.3Ga0.7As square quantum wells with thicknesses in the range 14–59 Å is examined via spectroscopic ellipsometry in the energy range 1.6–5.7 eV. Shifts in the E1 transitions are observed and found to be consistent with the shifts calculated within a simple square well model with finite barrier height using appropriate L‐point parameters of the bulk materials.This publication has 26 references indexed in Scilit:
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