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 journalArticle

    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

    Fingerprint

    Hubbard model
    Seebeck coefficient
    Thermoelectric power
    Charge transfer
    Single crystals
    Salts
    organic charge transfer salts
    Seebeck effect
    Temperature
    single crystals
    tetracyanoquinodimethane
    temperature

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Thermoelectric power in Hubbard-model systems with different densities : N-methylphenazinium-tetracyanoquinodimethane (NMP-TCNQ), and quinolinium ditetracyanoquinodimethane. / Kwak, J. F.; Beni, G.; Chaikin, P. M.

    In: Physical Review B, Vol. 13, No. 2, 1976, p. 641-646.

    Research output: Contribution to journalArticle

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    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.",
    author = "Kwak, {J. F.} and G. Beni and Chaikin, {P. M.}",
    year = "1976",
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    AU - Kwak, J. F.

    AU - Beni, G.

    AU - Chaikin, P. M.

    PY - 1976

    Y1 - 1976

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    AB - 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.

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