Va. Kosobukin et al., TEMPERATURE QUENCHING OF EXCITONS IN RESONANT ELASTIC LIGHT-SCATTERING FROM ROUGH SURFACES OF CRYSTALS, Solid state communications, 94(11), 1995, pp. 947-951
The temperature dependent resonant spectra of elastic light scattering
from rough surfaces of CdS crystals were studied in the vicinity of t
he A(n=1) exciton state. Good agreement is obtained between the measur
ed spectra and the results of a theory of diffuse light reflection, wh
ich takes account of both exciton spatial dispersion and exciton-free
''dead'' layer effects. The statistical parameters of surface roughnes
s and the temperature dependence of the exciton damping parameter are
presented.