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Excitonic molecules in type-II superlattices

โœ Scribed by T. Tsuchiya; S. Katayama; T. Ando

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
61 KB
Volume
23
Category
Article
ISSN
0749-6036

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โœฆ Synopsis

Excitonic molecules in GaAs/AlAs type-II superlattices are numerically investigated. In spite of large difference of electronic structures between type-II and type-I superlattices, variational calculations show that the configuration of particles is similar to that in type-I superlattices. This is because the layer width is smaller than the extent of excitonic wavefunctions in the direction parallel to the layers in the present superlattices.

๐Ÿ“œ SIMILAR VOLUMES

Exciton oscillator strength in GaAs/AlAs
Exciton oscillator strength in GaAs/AlAs superlattices near type I-type II transition
โœ I.L. Aleiner; E.L. Ivchenko; V.P. Kochereshko; G.L. Sandler; P. Lavallard; R. Pl ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 139 KB

We present resonance reflectivity measurements performed on graded GaAs/AlAs superlattices in the transitional region from type I to type II. A theory of exciton states and exciton oscillator strength is developed making allowance for the mixing of \(\Gamma_{1}, X_{1}\) and \(X_{3}\) electron states