Phonon Side Bands of UV Absorption in NaNO_2
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概要
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Phonon side bands of uv absorption in NaNO_2 have been studied by the measurement of high resolution spectrum with light polarized along each crystallographic axis at low temperatures. Strong peaks in the side bands are assigned to the phonon branches in the first Brillouin zone by taking account of the selection rules for the optical transitions in which an exciton and a phonon are created simultaneously. The integrated intensities of the E//b and E//c absorptions have been found to increase with temperature obeying the coth (hν/2kT) law with ν_b≃220cm^<-1> and ν_c≃130cm^<-1> respectively. The relation between the temperature dependence of the E//b and E//c absorptions and the profiles of their phonon side bands is discussed in terms of the averaged phonon frequency ν^^-.
- 社団法人日本物理学会の論文
- 1975-10-15
著者
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Kato Riso
Department Of Physics Faci4ty Of Science Kyoto University
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Kamada Masao
Department Of Physics Faculty Of Science Kyoto University
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YOSHIKAWA Mitsuo
Department of Physics, Faculty of Science, Kyoto University
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Yoshikawa Mitsuo
Department Of Physics Faculty Of Science Kyoto University:(present Address) Fujitsu Laboratories Ltd.
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