Interchain interaction and fractionally charged solitons in a commensurate charge-density-wave system

Mogens Høgh Jensen, P. S. Lomdahl

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    Abstract

    We have studied the effect of interchain interaction on thermally excited solitons in a charge-density wave for a Peierls system of commensurability 3. In such a system solitons with charges ±2e / 3 are expected. It is shown that the interchain coupling in some cases will generate solitons with lower and higher charge than ±2e / 3. The effect of discreteness is taken into account and gives rise to chaotic deformed solitons as the interchain coupling increases. The model may be applied to tetrathiafulvalene tetracyanoquinodimethane (TTF-TCNQ) under 19-kbar pressure.
    Original languageEnglish
    JournalPhysical Review B
    Volume26
    Issue number2
    Pages (from-to)1086-1089
    ISSN2469-9950
    DOIs
    Publication statusPublished - 1982

    Bibliographical note

    Copyright (1982) by the American Physical Society.

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