Theory of the Line Shape of the Exciton in Alkali Halides

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概要

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• The optical line shape of the exciton in insulators has been investigated. First the effective mass equation for the exciton originating from the degenerate electronic bands is deriyed. Next the exciton-phonon interaction Hamiltonian is constructed from the extended Bardeen-Shockley deformation potential. The optically allowed exciton states are usually accompanied by spin-triplet states lying below them. The latter are optically inactive, but the former can be scattered into the latter exciton states by acoustic phonons through the interaction Hamiltonian. It is shown by a model calculation for KBr that the line shape of the exciton is much influenced by this scattering mechanism.

• 社団法人日本物理学会の論文
• 1973-05-05

著者

• Sakoda Shoichiro

  Department Of Physics Kyoto University

関連論文

• Theory of the Jahn-Teller Effect on the Optical Spectra of Degenerate Exciton
• Optical Density Function in Mixed Crystals with the Generalized CPA Treatment
• Theory of the Line Shape of the Exciton in Alkali Halides

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