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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 1997

Optical absorption of type-II superlattices.

Résumé

Optical spectra of type-II superlattices are presented, including Coulomb interaction and continuum states. We clarify the relative importance of above- and below-barrier transitions. By gradually increasing the band-gap modulation, we visualize the transition from a bulk semiconductor to a type-I or type-II superlattice. We show that transitions that dominate the spectrum of a type-II superlattice are absent in the spectrum of a type-I superlattice and vice versa. The interplay of size and Landau quantization in the optical absorption is studied for both a type-I superlattice and a type-II superlattice in a perpendicular magnetic field.
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hal-01237153 , version 1 (02-12-2015)

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Stephan Glutsch, Pierre Lefebvre, Daniel S. Chemla. Optical absorption of type-II superlattices.. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 1997, 55 (23), pp.15786. ⟨10.1103/PhysRevB.55.15786⟩. ⟨hal-01237153⟩
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