Amplitude modes in cis-(CH)x: Second-order resonance Raman scattering

F. Coter; E. Ehrenfreund; B. Horovitz

doi:10.1088/0953-8984/2/1/020

Amplitude modes in cis-(CH)_x: Second-order resonance Raman scattering

F. Coter, E. Ehrenfreund, B. Horovitz

Department of Physics

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1 Scopus citations

Abstract

The amplitude mode formalism is used to account simultaneously for the first- and second-order resonance Raman scattering in cis-(CH)_x. The Raman cross-section is calculated assuming one-dimensional semiconducting band structure with finite electronic lifetimes. The strong overtone structure is the sharply peaked dynamic conductivity and its derivatives. Contrary to previous suggestions, no gap states are needed to explain the strong multiphonon Raman cross-section.

Original language	English
Article number	020
Pages (from-to)	239-244
Number of pages	6
Journal	Journal of Physics: Condensed Matter
Volume	2
Issue number	1
DOIs	https://doi.org/10.1088/0953-8984/2/1/020
State	Published - 1 Dec 1990

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1088/0953-8984/2/1/020

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abstract = "The amplitude mode formalism is used to account simultaneously for the first- and second-order resonance Raman scattering in cis-(CH)x. The Raman cross-section is calculated assuming one-dimensional semiconducting band structure with finite electronic lifetimes. The strong overtone structure is the sharply peaked dynamic conductivity and its derivatives. Contrary to previous suggestions, no gap states are needed to explain the strong multiphonon Raman cross-section.",

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AB - The amplitude mode formalism is used to account simultaneously for the first- and second-order resonance Raman scattering in cis-(CH)x. The Raman cross-section is calculated assuming one-dimensional semiconducting band structure with finite electronic lifetimes. The strong overtone structure is the sharply peaked dynamic conductivity and its derivatives. Contrary to previous suggestions, no gap states are needed to explain the strong multiphonon Raman cross-section.

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Amplitude modes in cis-(CH)_x: Second-order resonance Raman scattering

Abstract

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