Crystal structure and phase transition of PbBaSrYCu3Oy(y=7∼8.4

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

Research output: Contribution to journalArticle

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Abstract

PbBaSrYCu3Oy prepared by slow cooling, oxygen annealing and quenching methods was studied by XPD, EPMA, HREM and TGA. From a high resolution electron microscopic investigation, the structure of PbBaSrYCu3O7 quenched from above 800°C was found to be a derivative of Pb2Sr2YCu3O8, in which one of the PbO layers in the PbO-Cu-PbO block was missing. The slowly cooled specimen with y{reversed tilde equals}8.2 lost 1.2 oxygen atoms above 580°C with an abrupt and reversible transition to PbBaSrYCu3O7. All of the slowly cooled, oxygen annealed and quenched specimens showed no superconductivity and behaved like a semiconductor.

Original languageEnglish
Pages (from-to)459-467
Number of pages9
JournalPhysica C: Superconductivity and its Applications
Volume161
Issue number4
DOIs
Publication statusPublished - 1989 Dec 1
Externally publishedYes

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Crystal structure
Phase transitions
Oxygen
crystal structure
oxygen
oxygen atoms
superconductivity
High resolution electron microscopy
quenching
Electron probe microanalysis
Superconductivity
cooling
annealing
Quenching
high resolution
Annealing
Semiconductor materials
Cooling
Derivatives
Atoms

ASJC Scopus subject areas

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

Cite this

Crystal structure and phase transition of PbBaSrYCu3Oy(y=7∼8.4. / Yamamoto, Ayako; Oku, T.; Nagoshi, M.; Kikuchi, M.; Hiraga, K.; Syono, Y.

In: Physica C: Superconductivity and its Applications, Vol. 161, No. 4, 01.12.1989, p. 459-467.

Research output: Contribution to journalArticle

Yamamoto, Ayako ; Oku, T. ; Nagoshi, M. ; Kikuchi, M. ; Hiraga, K. ; Syono, Y. / Crystal structure and phase transition of PbBaSrYCu3Oy(y=7∼8.4. In: Physica C: Superconductivity and its Applications. 1989 ; Vol. 161, No. 4. pp. 459-467.
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