PRESSURE DEPENDENCE OF THE THERMOELECTRIC POWER OF TTF-TCNQ.

C. Weyl, D. Jerome, P. M. Chaikin, K. Bechgaard

    Research output: Contribution to journalArticle

    Abstract

    The thermoelectric power of TTF-TCNQ was measured in the temperature region from 300K-4K for pressures from atmospheric to 15 kbar. The room temperature thermopower decreases from approximately minus 30 mu V/K to approximately minus 10 mu V/K in this pressure range indicating that the relative conductivity of the TTF chain to the TCNQ chain increases with pressure. In the temperature regime of the metal-insulator phase transition it was found that the sign of thermopower changes. The highest temperature transition therefore corresponds to the ″freezing-out″ of carriers on both chains. As pressure increases this transition increasingly effects the TTF chain relative to the TCNQ chain.

    Original languageEnglish (US)
    Pages (from-to)1167-1172
    Number of pages6
    JournalJournal de physique Paris
    Volume43
    Issue number7
    DOIs
    StatePublished - 1982

    ASJC Scopus subject areas

    • Engineering(all)

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