We present a detailed investigation of excitonic absorption in Zn0.69Cd0.31Se/ZnSe quantum wells under the application of a perpendicular magnetic field. The large energy separation between heavy- and light-hole excitons allows us to clearly resolve and identify magneto-excitonic absorption resonant with the continuum edge of the 1S heavy-hole exciton. Experimental values of the exciton binding energy are compared with results of a theoretical model that includes the exciton-phonon interaction. The remarkable agreemeent found unambiguously indicates the predominant polaronic character of excitons in ZnSe-based heterostructures.
@article{arxiv.cond-mat/9904345,
title = {Polaronic Excitons in ZnCdSe/ZnSe Quantum Wells},
author = {A. De Nardis and V. Pellegrini and R. Colombelli and F. Beltram and I. Krivorotov and K. Bajaj},
journal= {arXiv preprint arXiv:cond-mat/9904345},
year = {2009}
}
Comments
8 RevTex pages, 3 PostScript figures, submitted to Phys. Rev. B