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

9 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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