Thermoelectric power in Hubbard-model systems with different densities: N-methylphenazinium-tetracyanoquinodimethane (NMP-TCNQ), and quinolinium ditetracyanoquinodimethane

J. F. Kwak, G. Beni, P. M. Chaikin

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We have measured the Seebeck coefficient of single crystals of the organic charge transfer salts N-methylphenazinium-tetracyanoquinodimethane (NMP-TCNQ) and quinolinium-(TCNQ)2 over the temperature range 300-20°K. The results are compared to simple band theory, which is found inadequate. A comparison with recent calculations in the atomic limit of the Hubbard model qualitatively distinguishes NMP as being close to a half-filled Hubbard band and quinolinium close to a quarter-filled Hubbard band.

    Original languageEnglish (US)
    Pages (from-to)641-646
    Number of pages6
    JournalPhysical Review B
    Volume13
    Issue number2
    DOIs
    StatePublished - 1976

    ASJC Scopus subject areas

    • Condensed Matter Physics

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