Abstract
The homogeneous linewidth of the lowest exciton state in CdTe/(Cd,Zn)Te single quantum wells (QW’s) has been analyzed as a function of QW thickness, temperature, and exciton density. The zero-temperature and density limit of suggests the presence of an ordering mechanism that decreases the effective interface roughness for the narrower QW’s in the CdTe/(Cd,Zn)Te system. The exciton–acoustic-phonon and the exciton-exciton scattering are of comparable strength as in GaAs QW’s, indicating the absence of strong localization effects, present in other II-VI QW systems.
- Received 15 March 1995
DOI:https://doi.org/10.1103/PhysRevB.51.17263
©1995 American Physical Society