Contribution to the electrodynamics of quasi-one-dimensional Peierls dielectrics

We construct a continuum model of a Peierls dielectric with an arbitrary commensurability in a de electric field and we study the field and concentration dependences of the soliton conductivity of the charge-density waves. For the first time an explanation is given for the threshold dependence of the conductivity on the electric field and the universal relation between the threshold field and the dielectric constant of the material. The continuum model of a Peierls dielectric is compared to the models of one-dimensional quantum field theory. The results of analysis provide an explanation for the data from low-temperature conductivity measurements of transition-metal trichalcogenides.

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