Enhancement of superconducting fluctuation under the coexistence of a competing pseudogap state in Bi2Sr2-xRxCuO y

Y. Okada, Y. Kuzuya, T. Kawaguchi, H. Ikuta

    研究成果: Article査読

    9 被引用数 (Scopus)

    抄録

    The onset temperature of superconducting fluctuation Tonset of Bi2Sr2-xRxCuOy (R=La and Eu) was studied by measuring the Nernst effect. We found that Tonset has a x and R dependence that is quite different from both the pseudogap temperature T* and the critical temperature Tc. Our results support the picture that the incoherent superconductivity, which has been observed below Tonset, is qualitatively different from the pseudogap phenomenon that is characterized by T*. The experimentally obtained phase diagram indicates that the pseudogap state suppresses Tc and enhances superconducting fluctuation while having only small influence on T onset.

    本文言語English
    論文番号214520
    ジャーナルPhysical Review B - Condensed Matter and Materials Physics
    81
    21
    DOI
    出版ステータスPublished - 2010 6 23

    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

    フィンガープリント

    「Enhancement of superconducting fluctuation under the coexistence of a competing pseudogap state in Bi<sub>2</sub>Sr<sub>2-x</sub>R<sub>x</sub>CuO <sub>y</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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