Resonant Raman scattering from amplitude modes in trans-(CH)x and -(CD)x

Z. Vardeny, E. Ehrenfreund, O. Brafman, B. Horovitz

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Abstract

The three resonantly enhanced Raman vibrations in trans-(CH)x and -(CD)x are described in terms of amplitude modes associated with the Peierls gap. The dispersion in the Raman-line profiles is explained by inhomogeneity. A narrow distribution of the effective electron-phonon coupling constant is required to account for the observed spectra in detail. The resonant Raman vibrations and the ir-active modes induced by doping or photogeneration are all described by the same form of dressed phonon propagator.

Original languageEnglish
Pages (from-to)2326-2329
Number of pages4
JournalPhysical Review Letters
Volume51
Issue number25
DOIs
StatePublished - 1 Jan 1983
Externally publishedYes

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