Low-temperature thermopower of (SN)x

L. J. Azevedo, P. M. Chaikin, W. G. Clark, W. W. Fuller, J. Hammann

    Research output: Contribution to journalArticle

    Abstract

    Measurements of the thermoelectric power of (SN)x are reported over the temperature range 0.15-4.2 K for magnetic fields of 0-15 kOe applied parallel and perpendicular to the fiber axis. Above 1 K, the thermopower is large, negative, and dominated by phonon drag, which indicates that electrons contribute more to the electrical conductivity than do holes, and that the phonons are predominately scattered by the electrons. As the temperature is decreased below 1 K in zero field, an increase in the thermopower is observed which is attributed to the Kondo effect. This increase is terminated at the superconducting transition temperature, where the thermopower drops to zero. With the application of a magnetic field, a complicated behavior is observed below 1 K which is attributed to a combination of the quenching of superconductivity, superconducting fluctuations, magnetic impurities, and the Kondo effect.

    Original languageEnglish (US)
    Pages (from-to)4450-4456
    Number of pages7
    JournalPhysical Review B
    Volume20
    Issue number11
    DOIs
    StatePublished - 1979

    Fingerprint

    Kondo effect
    Thermoelectric power
    magnetic fields
    drag
    phonons
    electrons
    superconductivity
    transition temperature
    quenching
    Magnetic fields
    impurities
    Temperature
    electrical resistivity
    fibers
    temperature
    Electrons
    Phonons
    Superconductivity
    Superconducting transition temperature
    Drag

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Azevedo, L. J., Chaikin, P. M., Clark, W. G., Fuller, W. W., & Hammann, J. (1979). Low-temperature thermopower of (SN)x. Physical Review B, 20(11), 4450-4456. https://doi.org/10.1103/PhysRevB.20.4450

    Low-temperature thermopower of (SN)x. / Azevedo, L. J.; Chaikin, P. M.; Clark, W. G.; Fuller, W. W.; Hammann, J.

    In: Physical Review B, Vol. 20, No. 11, 1979, p. 4450-4456.

    Research output: Contribution to journalArticle

    Azevedo, LJ, Chaikin, PM, Clark, WG, Fuller, WW & Hammann, J 1979, 'Low-temperature thermopower of (SN)x', Physical Review B, vol. 20, no. 11, pp. 4450-4456. https://doi.org/10.1103/PhysRevB.20.4450
    Azevedo LJ, Chaikin PM, Clark WG, Fuller WW, Hammann J. Low-temperature thermopower of (SN)x. Physical Review B. 1979;20(11):4450-4456. https://doi.org/10.1103/PhysRevB.20.4450
    Azevedo, L. J. ; Chaikin, P. M. ; Clark, W. G. ; Fuller, W. W. ; Hammann, J. / Low-temperature thermopower of (SN)x. In: Physical Review B. 1979 ; Vol. 20, No. 11. pp. 4450-4456.
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