Superconducting properties of REBa2Cu3Oy (RE = Y and Gd) films prepared by BaF2 process without water vapor

K. Yokoyama, R. Kita, A. Ichinose, O. Miura, K. Matsumoto, Y. Yoshida, Masashi Mukaida, S. Horii

Research output: Contribution to journalArticle

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Abstract

We have successfully fabricated YBa2Cu3Oy (Y123) and GdBa2Cu3Oy (Gd123) films on SrTiO3 substrates by the ex situ heat treatment of co-evaporated Y-BaF2-Cu and Gd-BaF2-Cu precursor films prepared by electron beam deposition technique without water vapor. Tc and Jc of the Y123 film were 91.6 K and 0.95 MA cm-2 at 77 K at self-field, respectively. The Gd123 film showed Tc of 93.4 K and Jc of 1.5 MA cm-2 at 77 K at self-field. It was found that the surface morphology of the Y123 and the Gd123 films depended on the partial oxygen pressure during the heat treatment.

Original languageEnglish
Pages (from-to)587-589
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - Oct 1 2006

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Steam
Water vapor
water vapor
heat treatment
Heat treatment
Surface morphology
Electron beams
electron beams
Oxygen
oxygen
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

Superconducting properties of REBa2Cu3Oy (RE = Y and Gd) films prepared by BaF2 process without water vapor. / Yokoyama, K.; Kita, R.; Ichinose, A.; Miura, O.; Matsumoto, K.; Yoshida, Y.; Mukaida, Masashi; Horii, S.

In: Physica C: Superconductivity and its applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 587-589.

Research output: Contribution to journalArticle

Yokoyama, K. ; Kita, R. ; Ichinose, A. ; Miura, O. ; Matsumoto, K. ; Yoshida, Y. ; Mukaida, Masashi ; Horii, S. / Superconducting properties of REBa2Cu3Oy (RE = Y and Gd) films prepared by BaF2 process without water vapor. In: Physica C: Superconductivity and its applications. 2006 ; Vol. 445-448, No. 1-2. pp. 587-589.
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AU - Yokoyama, K.

AU - Kita, R.

AU - Ichinose, A.

AU - Miura, O.

AU - Matsumoto, K.

AU - Yoshida, Y.

AU - Mukaida, Masashi

AU - Horii, S.

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