Raman Scattering by Sofy Plasmon-LO Phonon Modes in Ferroelectric Semiconductors

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概要

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• We present a theory of Raman scattering by the low-lying soft coupled plasmon-longitudinal optical (LO) phorzon modes at low temperatures in semiconductingincipient ferroelectrics. The softening of this mode gives a dynamical intimationof the screened LO phonon instability induced by the displacive ferroelectricphase transition. We compare our calculations with Raman spectra from o-KTa0.observed by Uwe et al., on the basis of the soft mode-like behavior of the coupledmodes as well as of the simple energy band structture.

• 社団法人日本物理学会の論文
• 1983-05-15

著者

• Katayama Shin'ichi

  Department Of Physics Osaka University:general Education Department Niigatauniversity

• Katayama Shin′ichi

  Department of Physics,Osaka University

関連論文

• Raman Scattering by Coupled LO Phonon-Plasmon Mode in n-GaAs
• Raman Scattering by Sofy Plasmon-LO Phonon Modes in Ferroelectric Semiconductors

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