Theory of the Jahn-Teller Effect on the Optical Spectra of Degenerate Exciton
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概要
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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 splitting √<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.
- 社団法人日本物理学会の論文
- 1973-07-05
著者
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Toyozawa Yutaka
The Institute For Solid State Physics The University Of Tokyo
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Sakoda Shoichiro
Department Of Physics Kyoto University
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