We characterized the electronic properties of ordered and intentionally disordered GaAs–Al(x)Ga(1−xAs) superlattices, with and without dimer-type correlations in the disorder, by means of spectroscopic ellipsometry in the near band-edge region. The spectra have been compared to the calculate electronic structure. The optical transitions in the various superlattices show specific features related to their different electronic structure.
Spectroscopic ellipsometry of intentionally disordered superlattices
BELLANI, VITTORIO;PARRAVICINI, GIANBATTISTA;
2004
Abstract
We characterized the electronic properties of ordered and intentionally disordered GaAs–Al(x)Ga(1−xAs) superlattices, with and without dimer-type correlations in the disorder, by means of spectroscopic ellipsometry in the near band-edge region. The spectra have been compared to the calculate electronic structure. The optical transitions in the various superlattices show specific features related to their different electronic structure.File in questo prodotto:
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