Transmission electron microscopic studies on the growth mechanism of YBa2Cu3O7-y and Nd1+xBa2-xCu3O7-y films formed by metalorganic deposition method using trifluoroacetates

J. Shibata, T. Honjo, H. Fuji, Ryo Teranishi, T. Izumi, Y. Shiohara, T. Yamamoto, Y. Ikuhara

Research output: Contribution to journalArticle

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Abstract

YBa2Cu3O7-y (Y123) and Nd1+xBa2-xCu3O7-y (Nd123) films were deposited by metalorganic deposition (MOD) method, and investigated by transmission electron microscopy and energy dispersive X-ray spectroscopy in order to elucidate the growth mechanism of the films in the MOD process. Y123 and Nd123 films were prepared by cooling rapidly during the final heat-treatment. In the case of the Y123 quenched film, it was found that a polycrystalline film is formed over a c-axis oriented Y123 film, and that there are Y2Cu2O5, BaF2 and CuO particles in the polycrystalline film. In contrast, in the Nd123 quenched film, (Nd,Ba)2CuO4 phase was found to be generated on the surface of the substrate. In conclusion, we suggest that the Nd123 film is formed by a reaction of (Nd,Ba)2CuO4, BaF2 and CuO, although the Y123 film is grown by diffusion and reaction of Y2Cu2O5, BaF2 and CuO crystals.

Original languageEnglish
Pages (from-to)1039-1044
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume378-381
Issue numberPART 2
DOIs
Publication statusPublished - Oct 1 2002
Externally publishedYes

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Trifluoroacetic Acid
Electrons
electrons
barium copper yttrium oxide
heat treatment
Heat treatment
electron energy
Transmission electron microscopy
Cooling
cooling

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 microscopic studies on the growth mechanism of YBa2Cu3O7-y and Nd1+xBa2-xCu3O7-y films formed by metalorganic deposition method using trifluoroacetates. / Shibata, J.; Honjo, T.; Fuji, H.; Teranishi, Ryo; Izumi, T.; Shiohara, Y.; Yamamoto, T.; Ikuhara, Y.

In: Physica C: Superconductivity and its applications, Vol. 378-381, No. PART 2, 01.10.2002, p. 1039-1044.

Research output: Contribution to journalArticle

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AU - Honjo, T.

AU - Fuji, H.

AU - Teranishi, Ryo

AU - Izumi, T.

AU - Shiohara, Y.

AU - Yamamoto, T.

AU - Ikuhara, Y.

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