The relation between the scaling behavior of thermopower and the band structure in high-Tc superconductors

Y. Okada, H. Ikuta, T. Kondo, U. Mizutani

    Research output: Contribution to journalConference articlepeer-review

    5 Citations (Scopus)


    We measured thermopower of La-doped Bi2201 polycrystalline samples and found that the experimental results can be scaled on a master curve by adequately assuming a doping dependent scaling temperature similarly as has been reported for other cuprate superconductors. However, the choice of the scaling temperature was not unique, indicating that the scaling temperature does not necessarily coincide with the pseudogap temperature as was claimed in the earlier reports. We also calculated thermopower curves based on the reported electronic structure of an overdoped Bi2201 crystal and by assuming a rigid band picture. Although the opening of the pseudogap was not accounted for in these calculations, we found that it is possible to scale the calculated curves by the same procedure that was applied to the experimental results.

    Original languageEnglish
    Pages (from-to)386-389
    Number of pages4
    JournalPhysica C: Superconductivity and its applications
    Issue numberI
    Publication statusPublished - 2005 Oct 1
    EventProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
    Duration: 2004 Nov 232004 Nov 25


    • Bi(Sr,La)CuO
    • Pseudogap
    • Scaling
    • Thermopower

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering


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