ISSN:
0392-6737
Keywords:
Excitons and related phenomena (including electron-hole drops)
;
Electron states in low-dimensional structures (including quantum wells, superlattices, layer structures, and intercalation compounds)
;
II–VI semiconductors
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary We discuss the exciton centre-of-mass dispersion in a (Ga,Al)As-GaAs-AlAs-(Ga, Al)As quantum well taking into account the Γ-X coupling. The position of the Γ andX quantum well levels is monitored by applying an external electric field. Near the degeneracy, the coupling plays an important role mixing the Γ andX levels. As a consequence, the exciton in-plane mass presents a significant non-parabolicity as its values change from a Γ-reduced mass to aX-reduced mass.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02457262
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