Interface structures of heteroepitaxially grown Pr123/Y123 and Pr123/Nd123 crystals by liquid phase epitaxy

Minoru Tagami, M. Nakamura, Yoshihiro Sugawara, Yuichi Ikuhara, Yuh Shiohara

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    PrBa2Cu3O7-δ/YBa2Cu 3O7-δ (Pr123/Y123) and PrBa2Cu3O7-δ/NdBa2Cu 3O7-δ (Pr123/Nd123) epitaxially grown crystals were fabricated by Liquid Phase Epitaxy (LPE) and the interface structures were investigated by cross-sectional high-resolution electron microscopy (HREM). In the case of Pr123/Y123, crystals were grown on the (001)Y123 surface of a Y123 substrate, and in the case of Pr123/Nd123, crystals were grown on the (010)Nd123 surface of a Nd123 substrate. For Pr123/Y123 and Pr123/Nd123, misfit dislocation spacings of 31 nm and 0.7 mm resulted from the lattice mismatch of a-axis were observed, respectively, and no interdiffusion layer was detected within the region of 10 nm apart from the growth interface. The misfit dislocation at the interface was introduced so as to completely release the elastic strains.

    Original languageEnglish
    Pages (from-to)185-194
    Number of pages10
    JournalPhysica C: Superconductivity and its applications
    Volume298
    Issue number3-4
    DOIs
    Publication statusPublished - 1998 Apr 1

    Keywords

    • Epitaxial growth
    • Interface structure
    • Misfit dislocation
    • NdBaCuO
    • PrBaCuO
    • YBaCuO

    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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