Interaction effects and thermoelectric power in low-temperature hopping

Michael J. Burns, Paul M. Chaikin

    Research output: Contribution to journalArticle

    Abstract

    The effect of electron-electron interactions on the thermoelectric power for hopping transport in two and three dimensions is calculated in the low-temperature limit. While the conductivity requires a very precise measurement to extract a temperature exponent with enough precision to determine the role of the interactions, it is shown that the thermopower behaviour will reflect the presence of interactions in an unambiguous manner. In contrast to a Mott variable-range hopping model where the thermopower decreases to zero as the temperature decreases (S=0 at T=0), the thermopower in an Efros interaction mode, should approach a non-zero constant as T → 0.

    Original languageEnglish (US)
    JournalJournal of Physics C: Solid State Physics
    Volume18
    Issue number24
    DOIs
    StatePublished - Aug 30 1985

    Fingerprint

    Thermoelectric power
    interactions
    Electron-electron interactions
    Temperature
    electron scattering
    exponents
    conductivity
    temperature
    electrons

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Condensed Matter Physics

    Cite this

    Interaction effects and thermoelectric power in low-temperature hopping. / Burns, Michael J.; Chaikin, Paul M.

    In: Journal of Physics C: Solid State Physics, Vol. 18, No. 24, 30.08.1985.

    Research output: Contribution to journalArticle

    @article{7a9b90837256422d8099256bf09b6513,
    title = "Interaction effects and thermoelectric power in low-temperature hopping",
    abstract = "The effect of electron-electron interactions on the thermoelectric power for hopping transport in two and three dimensions is calculated in the low-temperature limit. While the conductivity requires a very precise measurement to extract a temperature exponent with enough precision to determine the role of the interactions, it is shown that the thermopower behaviour will reflect the presence of interactions in an unambiguous manner. In contrast to a Mott variable-range hopping model where the thermopower decreases to zero as the temperature decreases (S=0 at T=0), the thermopower in an Efros interaction mode, should approach a non-zero constant as T → 0.",
    author = "Burns, {Michael J.} and Chaikin, {Paul M.}",
    year = "1985",
    month = "8",
    day = "30",
    doi = "10.1088/0022-3719/18/24/006",
    language = "English (US)",
    volume = "18",
    journal = "Journal of Physics Condensed Matter",
    issn = "0953-8984",
    publisher = "IOP Publishing Ltd.",
    number = "24",

    }

    TY - JOUR

    T1 - Interaction effects and thermoelectric power in low-temperature hopping

    AU - Burns, Michael J.

    AU - Chaikin, Paul M.

    PY - 1985/8/30

    Y1 - 1985/8/30

    N2 - The effect of electron-electron interactions on the thermoelectric power for hopping transport in two and three dimensions is calculated in the low-temperature limit. While the conductivity requires a very precise measurement to extract a temperature exponent with enough precision to determine the role of the interactions, it is shown that the thermopower behaviour will reflect the presence of interactions in an unambiguous manner. In contrast to a Mott variable-range hopping model where the thermopower decreases to zero as the temperature decreases (S=0 at T=0), the thermopower in an Efros interaction mode, should approach a non-zero constant as T → 0.

    AB - The effect of electron-electron interactions on the thermoelectric power for hopping transport in two and three dimensions is calculated in the low-temperature limit. While the conductivity requires a very precise measurement to extract a temperature exponent with enough precision to determine the role of the interactions, it is shown that the thermopower behaviour will reflect the presence of interactions in an unambiguous manner. In contrast to a Mott variable-range hopping model where the thermopower decreases to zero as the temperature decreases (S=0 at T=0), the thermopower in an Efros interaction mode, should approach a non-zero constant as T → 0.

    UR - http://www.scopus.com/inward/record.url?scp=0000540286&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0000540286&partnerID=8YFLogxK

    U2 - 10.1088/0022-3719/18/24/006

    DO - 10.1088/0022-3719/18/24/006

    M3 - Article

    AN - SCOPUS:0000540286

    VL - 18

    JO - Journal of Physics Condensed Matter

    JF - Journal of Physics Condensed Matter

    SN - 0953-8984

    IS - 24

    ER -