Stable barium compounds in YBa 2 Cu 3 O y superconductors

R. Kita, K. Suzuki, T. Takeuchi, T. Iwasa, O. Miura, Y. Ichino, T. Yoshimura, Y. Yoshida, K. Yamada, Kenji Kaneko, A. Ichinose

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The stability of various amounts of Ba 3 Cu 3 In 4 O 12 (334) or BaTbO 3 (BTO) in a sintered YBa 2 Cu 3 O y (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (T c ) above 90 K for up to 20 vol.% addition and improved critical current densities (J c ) under a magnetic field. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis indicated that 334 and BTO did not react with the YBCO matrix under the sintering conditions used. The normalized J c under a magnetic field of 1 T reached a maximum at 14 vol.% of 334 addition and 20 vol.% BTO addition. YBCO thin films with added BTO showed a gradual decrease in the T c with increasing BTO content. YBCO films with added 334 showed a constant T c of 87 K up to a 334 content of 4 vol.%.

Original languageEnglish
Pages (from-to)859-862
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume471
Issue number21-22
DOIs
Publication statusPublished - Nov 1 2011

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Barium Compounds
Barium compounds
barium compounds
Superconducting materials
Magnetic fields
Energy dispersive X ray analysis
Theophylline
Sintering
matrices
magnetic fields
X ray diffraction
Thin films
Scanning electron microscopy
critical current
critical temperature
sintering
x rays
electron energy
current density
scanning electron microscopy

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

Kita, R., Suzuki, K., Takeuchi, T., Iwasa, T., Miura, O., Ichino, Y., ... Ichinose, A. (2011). Stable barium compounds in YBa 2 Cu 3 O y superconductors Physica C: Superconductivity and its applications, 471(21-22), 859-862. https://doi.org/10.1016/j.physc.2011.05.074

Stable barium compounds in YBa 2 Cu 3 O y superconductors . / Kita, R.; Suzuki, K.; Takeuchi, T.; Iwasa, T.; Miura, O.; Ichino, Y.; Yoshimura, T.; Yoshida, Y.; Yamada, K.; Kaneko, Kenji; Ichinose, A.

In: Physica C: Superconductivity and its applications, Vol. 471, No. 21-22, 01.11.2011, p. 859-862.

Research output: Contribution to journalArticle

Kita, R, Suzuki, K, Takeuchi, T, Iwasa, T, Miura, O, Ichino, Y, Yoshimura, T, Yoshida, Y, Yamada, K, Kaneko, K & Ichinose, A 2011, ' Stable barium compounds in YBa 2 Cu 3 O y superconductors ', Physica C: Superconductivity and its applications, vol. 471, no. 21-22, pp. 859-862. https://doi.org/10.1016/j.physc.2011.05.074
Kita, R. ; Suzuki, K. ; Takeuchi, T. ; Iwasa, T. ; Miura, O. ; Ichino, Y. ; Yoshimura, T. ; Yoshida, Y. ; Yamada, K. ; Kaneko, Kenji ; Ichinose, A. / Stable barium compounds in YBa 2 Cu 3 O y superconductors In: Physica C: Superconductivity and its applications. 2011 ; Vol. 471, No. 21-22. pp. 859-862.
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