Magnetothermopower study of (TMTSF)2PF6 (where TMTSF is tetramethyltetraselenafulvalene)

W. Kang, S. T. Hannahs, L. Y. Chiang, R. Upasani, P. M. Chaikin

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We have performed a thermoelectric-power study of the organic conductor (TMTSF)2PF6 which exhibits a type of bulk quantum Hall effect (QHE), resulting from a cascade of magnetic-field-induced spin-density-wave (FISDW) transitions. The FISDW are characterized by a sharp increase in thermopower as the temperature is lowered through the transition temperature, followed by an exponential decrease as temperature approaches zero. This suggest a temperature-dependent gap leading to collective QHE-like transport. Most surprising is the vanishing thermopower in the insulating n=0 state.

    Original languageEnglish (US)
    Pages (from-to)13566-13571
    Number of pages6
    JournalPhysical Review B
    Volume45
    Issue number23
    DOIs
    StatePublished - 1992

    ASJC Scopus subject areas

    • Condensed Matter Physics

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