Title: Theory of the Jahn-Teller Effect on the Optical Spectra of Degenerate Exciton
Abstract: The Jahn-Teller effect on the optical spectra of degenerate exciton is investigated. The lattice vibrations interacting with exciton are treated quasi-classically, in terms of the quasi-molecular mode localized around each lattice site. The optical spectra for both the doubly degenerate and the triply degenerate excitons are calculated with the coherent potential approximation. If the ratio α of the local level splitting \(\sqrt{c^{2}}kT\) to the half of the exciton band width B is larger than unity, the distinct Jahn-Teller splitting of the optical spectra is observable. When α<1 the spectral splitting is washed out due to motional narrowing. A brief discussion on a relevant experiment is given.
Publication Year: 1973
Publication Date: 1973-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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