Spin-flip and acoustic-phonon Raman scattering in CdS nanocrystals

15 July 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 58 (4) , 2077-2087
https://doi.org/10.1103/physrevb.58.2077

Abstract

We report on spin-flip Raman scattering and on Raman scattering by acoustic phonons in CdS nanocrystals embedded in a glass matrix. We discuss both the spin-flip and the acoustic-phonon Raman spectra on the basis of the interaction of size-quantized electronic excitations with nonconfined acoustic vibrations. The polarization of spin-flip Raman scattering in the Faraday and Voigt configurations is analyzed in comparison with that for bulk CdS. The effective electron

g

factor has been measured as a function of the quantum dot size.

Keywords

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