Thermopower of M-TCNQ Doped TTF-TCNQ and TSeF-TCNQ

P. M. Chaikin, R. L. Greene, E. M. Engler

    Research output: Contribution to journalArticle

    Abstract

    We have measured the thermoelectric power of TTF-TCNQ with 3% of the anion substituted with M-TCNQ and TSeF-TCNQ with M-TCNQ doping up to 12%. These studies show that the TCNQ chain is driving the metal insulator transitions observed in these salts. In addition they elucidate the deviations from a linear temperature dependence previously observed in the thermopower of the undoped compounds in terms of scattering effects on the TCNQ chain. At low temperatures the disorder produced by the doping results in a thermopower of less than -3μV/K in 12% M-TCNQ doped TSeF-TCNQ indicating a large number of states at the Fermi energy.

    Original languageEnglish (US)
    Pages (from-to)1009-1013
    Number of pages5
    JournalSolid State Communications
    Volume25
    Issue number12
    DOIs
    StatePublished - 1978

    Fingerprint

    Thermoelectric power
    Doping (additives)
    Metal insulator transition
    insulators
    disorders
    anions
    salts
    Fermi level
    deviation
    temperature dependence
    Negative ions
    scattering
    Scattering
    metals
    Salts
    Temperature
    tetracyanoquinodimethane
    energy
    Anions

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

    Cite this

    Thermopower of M-TCNQ Doped TTF-TCNQ and TSeF-TCNQ. / Chaikin, P. M.; Greene, R. L.; Engler, E. M.

    In: Solid State Communications, Vol. 25, No. 12, 1978, p. 1009-1013.

    Research output: Contribution to journalArticle

    Chaikin, PM, Greene, RL & Engler, EM 1978, 'Thermopower of M-TCNQ Doped TTF-TCNQ and TSeF-TCNQ', Solid State Communications, vol. 25, no. 12, pp. 1009-1013. https://doi.org/10.1016/0038-1098(78)90894-3
    Chaikin, P. M. ; Greene, R. L. ; Engler, E. M. / Thermopower of M-TCNQ Doped TTF-TCNQ and TSeF-TCNQ. In: Solid State Communications. 1978 ; Vol. 25, No. 12. pp. 1009-1013.
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    abstract = "We have measured the thermoelectric power of TTF-TCNQ with 3{\%} of the anion substituted with M-TCNQ and TSeF-TCNQ with M-TCNQ doping up to 12{\%}. These studies show that the TCNQ chain is driving the metal insulator transitions observed in these salts. In addition they elucidate the deviations from a linear temperature dependence previously observed in the thermopower of the undoped compounds in terms of scattering effects on the TCNQ chain. At low temperatures the disorder produced by the doping results in a thermopower of less than -3μV/K in 12{\%} M-TCNQ doped TSeF-TCNQ indicating a large number of states at the Fermi energy.",
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