Influence of phonon dispersion and exciton spectrum on the energy spectrum of magnetopolarons in a quantum well |
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Authors: | L I Korovin I G Lang S T Pavlov |
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Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia;(2) Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 117924, Russia |
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Abstract: | An analysis is made of the influence of the spatial dispersion of LO phonons and the exciton effect on the energy spectrum of magnetopolarons in a quantum well. It is shown that in optical experiments where light is incident normally on the plane of the quantum well, a discrete spectrum of magnetopolarons is observed. Both the phonon dispersion and the Coulomb attraction of an electron and a hole may lead to a shift of the discrete magnetopolaron energy levels and additional contributions to the broadening of various levels. |
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