Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process

K. Yamada, N. Mori, K. Tada, T. Tanaka, Ryo Teranishi, Masashi Mukaida, S. Toh, Kenji Kaneko, T. Izumi, Y. Shiohara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The advanced metal organic deposition using trifluoroacetates (TFA-MOD) is one of the most promising methods for producing superconducting coated conductors. In order to form highly grain aligned YBa2Cu3O7-δ (Y123) films with high JC, it is important to control the microstructures of the films. In the present work, Y123 films were grown by the advanced TFA-MOD method on CeO2 layered LaAlO3 (LAO) substrates. Quenched films were prepared by cooling rapidly during the crystallization stage, and their cross-sectional microstructures were investigated by transmission electron microscopy (TEM). The bright-field images (BFIs) showed existence of some grains, precipitates and their interfaces in the film. Selected area electron diffraction patterns (SAEDPs) were taken from various regions, and a-axis and/or c-axis-oriented structures, amorphous structures, etc. were observed. In addition, Y123 grains, BaF2, CuO and Y2Cu2O5 grains were clarified by the scanning transmission electron microscopy-energy dispersive X-ray spectroscopy (STEM-EDS) analyses.

Original languageEnglish
Pages (from-to)717-721
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume463-465
Issue numberSUPPL.
DOIs
Publication statusPublished - Oct 1 2007

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Transmission electron microscopy
transmission electron microscopy
Trifluoroacetic Acid
microstructure
Microstructure
Crystallization
Electron diffraction
Diffraction patterns
Precipitates
precipitates
diffraction patterns
electron diffraction
conductors
Metals
crystallization
Cooling
cooling
Scanning electron microscopy
scanning electron microscopy
Substrates

All Science Journal Classification (ASJC) codes

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

Cite this

Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process. / Yamada, K.; Mori, N.; Tada, K.; Tanaka, T.; Teranishi, Ryo; Mukaida, Masashi; Toh, S.; Kaneko, Kenji; Izumi, T.; Shiohara, Y.

In: Physica C: Superconductivity and its Applications, Vol. 463-465, No. SUPPL., 01.10.2007, p. 717-721.

Research output: Contribution to journalArticle

Yamada, K. ; Mori, N. ; Tada, K. ; Tanaka, T. ; Teranishi, Ryo ; Mukaida, Masashi ; Toh, S. ; Kaneko, Kenji ; Izumi, T. ; Shiohara, Y. / Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process. In: Physica C: Superconductivity and its Applications. 2007 ; Vol. 463-465, No. SUPPL. pp. 717-721.
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