Superconducting properties of Sm0.33Eu0.33Gd 0.33Ba2Cu3Oy films by metal-organic deposition using metal 2-ethylhexanates

T. Nakamura, R. Kita, O. Miura, A. Ichinose, K. Yamada, K. Kaneko

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We have prepared Sm0.33Eu0.33Gd0.33Ba 2Cu3Oy (SEGBCO) films on LaAlO3 single-crystal substrates by metal-organic deposition using 2-ethylhexanate solutions which contain no fluorine. The SEGBCO film fired at 850 °C under a low oxygen partial pressure of 2 × 106 atm exhibited strong c-axis oriented X-ray diffraction peaks and weak a/b-axis oriented peaks of the SEGBCO phase, and had a granular surface. High resolution cross-sectional transmission electron microscope images indicated the epitaxial growth of the SEGBCO film on the substrate with overgrowth of a/b-axis oriented grains. The critical temperature and critical current density values of the SEGBCO film was 86.5 Kand 1.29 MA/cm2, respectively, at 77.3 K at the self-field.

    Original languageEnglish
    Pages (from-to)1249-1252
    Number of pages4
    JournalPhysica C: Superconductivity and its applications
    Volume470
    Issue number20
    DOIs
    Publication statusPublished - Nov 1 2010

    All Science Journal Classification (ASJC) codes

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

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