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

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

    研究成果: Conference article査読

    5 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)386-389
    ページ数4
    ジャーナルPhysica C: Superconductivity and its applications
    426-431
    I
    DOI
    出版ステータスPublished - 2005 10 1
    イベントProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
    継続期間: 2004 11 232004 11 25

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 凝縮系物理学
    • エネルギー工学および電力技術
    • 電子工学および電気工学

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