Synthesis and superconductivity of PbBaSrY1-xCaxCu3O7

Ayako Yamamoto, M. Nagoshi, T. Oku, N. Kobayashi, M. Kikuchi, K. Hiraga, Y. Syono

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Superconducting PbBaSrY1-xCaxCu3O7 with a maximum Tc onset at 65 K was synthesized. Single-phase materials were obtained for 0 ≤ x ≤ 0.25 by sintering in a 1% O2-N2 gas at 750-830°C and quenching from 785°C. Superconductivity appeared for x ≥ 0.15 and Tc increased with increasing Ca content. PbBaSrY0.7Ca0.3O7 was confirmed to achieve zero resistance at 37 K with about 45% bulk superconductivity. Superconductivity was considered to occur by hole introduction in CuO2 sheets by substituting Y3+ with Ca2+, the same mechanism as in Pb2Sr2Y1-xCaxCu3O8.

Original languageEnglish
Pages (from-to)285-290
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume168
Issue number3-4
DOIs
Publication statusPublished - 1990 Jun 15
Externally publishedYes

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Superconductivity
superconductivity
synthesis
Quenching
sintering
Sintering
Gases
quenching
gases

ASJC Scopus subject areas

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

Cite this

Synthesis and superconductivity of PbBaSrY1-xCaxCu3O7 . / Yamamoto, Ayako; Nagoshi, M.; Oku, T.; Kobayashi, N.; Kikuchi, M.; Hiraga, K.; Syono, Y.

In: Physica C: Superconductivity and its Applications, Vol. 168, No. 3-4, 15.06.1990, p. 285-290.

Research output: Contribution to journalArticle

Yamamoto, A, Nagoshi, M, Oku, T, Kobayashi, N, Kikuchi, M, Hiraga, K & Syono, Y 1990, 'Synthesis and superconductivity of PbBaSrY1-xCaxCu3O7 ', Physica C: Superconductivity and its Applications, vol. 168, no. 3-4, pp. 285-290. https://doi.org/10.1016/0921-4534(90)90519-K
Yamamoto, Ayako ; Nagoshi, M. ; Oku, T. ; Kobayashi, N. ; Kikuchi, M. ; Hiraga, K. ; Syono, Y. / Synthesis and superconductivity of PbBaSrY1-xCaxCu3O7 In: Physica C: Superconductivity and its Applications. 1990 ; Vol. 168, No. 3-4. pp. 285-290.
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