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Dynamic properties of solitons in the Frenkel-Kontorova Model. Application to incommensurate CDW conductors

Victor M. Burlakov
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Abstract

An impact of kink-type solitons on infrared lattice vibrations is studied for incommensurate Frenkel-Kontorova model. It is shown that the vibration of particles involved into the kink formation is very similar to that in a gap mode around the force constant defect. IR phonon mode intensity is found to possess a universal dependence on the system parameters and the kink concentration. It is argued that the giant IR peak observed in a number of incommensurate charge density wave conductors can be explained in terms of dynamic charge transfer stimulated by kinks.

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Victor M. Burlakov. 1998-11-29. Dynamic properties of solitons in the Frenkel-Kontorova Model. Application to incommensurate CDW conductors. https://arxiv.org/abs/patt-sol/9812002

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