Effect of the grooved SrTiO3 bicrystal line on the YBa2Cu3O7 grain boundary

Hsiao Wen Yu, Ming Jye Chen, H. C. Yang, S. Y. Yang, H. E. Horng

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)


    Using atomic force microscope (AFM), we have investigated the correlation between the characteristics of grooved SrTiO3 (STO) bicrystal line and the grain-boundary (GB) microstructure of the YBa2Cu3Oy (YBCO) film. When the underlying groove becomes deeper and steeper, the density of growth spirals along the boundary line increases and the meandering configuration of GB gradually disappears. From the measured signals of the dc-SQUIDs patterned on the films, we also conclude that the homogeneity of the GB is improved.

    Original languageEnglish
    Pages (from-to)163-169
    Number of pages7
    JournalPhysica C: Superconductivity and its applications
    Issue number3
    Publication statusPublished - 2000 May 20

    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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