Magnetopolaron effects on the intradonor 1s-2p+ transition energies in a GaAs-AlGaAs double quantum well
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2006
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In this work we present a calculation of the intradonor 1s-2p+ transition energies for an impurity donor present
in a GaAs-AlGaAs Double Quantum Well structure as a function of an applied external magnetic field. In our
calculation the impurity energy levels were obtained from a variational method by choosing a Gaussian trial
wave function, and the energy corrections due to the polaronic effect were included by second order perturbation
theory IWBPT as modified by Cohn, Larsen and Lax. We have considered only the GaAs bulk LO phonon in
the electron-phonon coupling. A very good agreement between the theoretical and experimental results for a
DQW consisting of two 100 °A well widths separated by a 100 °A potential barrier width was obtained.
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Intradonor 1s-2p+ transition, Magnetic field, GaAs-AlGaAs double quantum well
Citação
OSORIO, F. A. P.; MACHADO, Paulo C. M.; BORGES, A. N. Magnetopolaron effects on the intradonor 1s-2p+ transition energies in a GaAs-AlGaAs double quantum well. Brazilian Journal of Physics, São Paulo, v. 36, n. 2A, p. 354-356, 2006. DOI: 10.1590/S0103-97332006000300032. Disponível em: https://www.scielo.br/j/bjp/a/Vn6Qvd96TBQ37cT75KXkZtK/?lang=en. Acesso em: 24 abr. 2023.