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Binding energies of excitons in symmetric and asymmetric quantum wells in a magnetic field

✍ Scribed by E. Kasapoglu; H. Sari; Y. Ergun; S. Elagoz; I. Sokmen

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
137 KB
Volume
24
Category
Article
ISSN
0749-6036

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✦ Synopsis

The binding energy of the exciton in the symmetric and asymmetric GaAs/Ga 1-x Al x As quantum wells is calculated with the use of a variational approach. Results have been obtained as a function of the potential symmetry, and the size of the quantum well in the presence of an arbitrary magnetic field. The applied magnetic field is taken to be parallel to the axis of growth of the quantum well structure. The role of the asymmetric barriers, magnetic field, and well width in the excitonic binding is discussed as the tunability parameters of the GaAs/Ga 1-x Al x As system.

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