The R dependence of the phase diagram of Bi2Sr2-xRxCuOy and its implication on high temperature superconductivity

Yoshinori Okada, T. Takeuchi, T. Baba, S. Shin, H. Ikuta

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    1 Citation (Scopus)


    We have studied how the phase diagram of the Bi2Sr2-xRxCuOy system depends on the rare earth element R. The angle-resolved photoemission spectroscopy (ARPES) measurement revealed that the pseudogap is larger for the R = Eu sample than the R = La sample when compared at the same carrier concentration while the transition temperature Tc of the R = La sample is larger. This implies that changing the R element to one with a smaller ionic radius stabilizes the pseudogap phase and suppresses at the same time the high-Tc superconducting phase.

    Original languageEnglish
    Pages (from-to)440-441
    Number of pages2
    JournalPhysica C: Superconductivity and its applications
    Volume460-462 I
    Issue numberSPEC. ISS.
    Publication statusPublished - 2007 Sep 1


    • BiSrRCuO
    • Disorder
    • Phase diagram
    • Pseudogap

    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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