EBSD Characterization of Specific Microstructures in RE-BCO Superconductors

Anjela Koblischka-Veneva, Michael R. Koblischka, Jorg Schmauch, Y. Wan, J. Qian, Xin Yao

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Using the electron backscatter diffraction (EBSD) technique, we analyze in this contribution the microstructure of YBa2Cu3Ox (YBCO) thick films with embedded a-axis oriented grains. The YBCO films were prepared by liquid phase epitaxy in air using NdGaO3 substrates. Using this technique, a/c-grain boundaries (GBs) with a well-defined facet of the YBCO film characterized by a single crystalline nature are obtained. This type of GB is very important for the basic physics of GBs in high-Tc superconductor materials, and will contribute to a better understanding of GBs also in bulk materials. The application of EBSD to the analysis of a/c-GBs in YBCO requires a high Kikuchi pattern quality (i.e., image quality) to enable a proper distinction of the orientation, as the a-axis corresponds to about one-third of the c-axis, which can cause a misinterpretation of the resulting data. Having solved this problem, the EBSD-based determination of the GB misorientation angles directly proof the specific grain orientation achieved in the film growth.

本文言語English
論文番号8528876
ジャーナルIEEE Transactions on Applied Superconductivity
29
3
DOI
出版ステータスPublished - 2019 4月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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