Detection of soliton shape modes in polyacetylene

Z. Vardeny; E. Ehrenfreund; O. Brafman; B. Horovitz; H. Fujimoto; J. Tanaka; M. Tanaka

doi:10.1103/PhysRevLett.57.2995

Detection of soliton shape modes in polyacetylene

Z. Vardeny, E. Ehrenfreund, O. Brafman, B. Horovitz, H. Fujimoto, J. Tanaka, M. Tanaka

Department of Physics

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39 Scopus citations

Abstract

We observed soliton shape modes by photoinduced absorption in partially isomerized (CH)x and (CD)x, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which allows coupling of shape modes and translational modes. We also observed soliton shape-mode absorption in fully isomerized samples as phonon sidebands associated with optical transitions of neutral solitons above 1.5 eV.

Original language	English
Pages (from-to)	2995-2998
Number of pages	4
Journal	Physical Review Letters
Volume	57
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.57.2995
State	Published - 1 Jan 1986

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General Physics and Astronomy

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abstract = "We observed soliton shape modes by photoinduced absorption in partially isomerized (CH)x and (CD)x, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which allows coupling of shape modes and translational modes. We also observed soliton shape-mode absorption in fully isomerized samples as phonon sidebands associated with optical transitions of neutral solitons above 1.5 eV.",

author = "Z. Vardeny and E. Ehrenfreund and O. Brafman and B. Horovitz and H. Fujimoto and J. Tanaka and M. Tanaka",

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AU - Ehrenfreund, E.

AU - Brafman, O.

AU - Horovitz, B.

AU - Fujimoto, H.

AU - Tanaka, J.

AU - Tanaka, M.

PY - 1986/1/1

Y1 - 1986/1/1

N2 - We observed soliton shape modes by photoinduced absorption in partially isomerized (CH)x and (CD)x, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which allows coupling of shape modes and translational modes. We also observed soliton shape-mode absorption in fully isomerized samples as phonon sidebands associated with optical transitions of neutral solitons above 1.5 eV.

AB - We observed soliton shape modes by photoinduced absorption in partially isomerized (CH)x and (CD)x, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which allows coupling of shape modes and translational modes. We also observed soliton shape-mode absorption in fully isomerized samples as phonon sidebands associated with optical transitions of neutral solitons above 1.5 eV.

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Detection of soliton shape modes in polyacetylene

Abstract

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