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

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    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.
    DOIs
    Publication statusPublished - 2007 Sep 1

    Keywords

    • 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

    Fingerprint Dive into the research topics of 'The R dependence of the phase diagram of Bi<sub>2</sub>Sr<sub>2-x</sub>R<sub>x</sub>CuO<sub>y</sub> and its implication on high temperature superconductivity'. Together they form a unique fingerprint.

    Cite this