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The period of the Peierls distortion in a one-dimensional system is assumed to be incommensurate with the lattice. The fluctuation conductivity just above the mean-field transition temperature is calculated in the presence of electron-impurity scatterings. In the clean limit for sufficiently strong electron-phonon interaction, the conductivity is enhanced by fluctuations whose contribution is impurity limited and goes like (T-TP)^-1/2 in the leading approximation. In the dirty limit, the conductivity is reduced by fluctuations.
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Patton et al. (1974) studied this question.
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