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Journal of Superconductivity and Novel Magnetism

, Volume 23, Issue 6, pp 1011–1014 | Cite as

Study of the Crystal Structures of New Buffer Materials Bi 1−x Y x O 1.5

  • X. J. Zhang
  • W. T. Jin
  • S. J. Hao
  • Y. Zhao
  • H. Zhang
Original Paper

Abstract

Bismuth based oxides, formed by bismuth oxide doped with the yttrium or lanthanum element, have been widely studied for their high ionic conductivities and other applicable properties. Recently, they were used as buffer layers for film superconductors and have shown a promising future. But the detailed information of their structures and properties has not been fully understood. In this work, the series samples of Bi1−x Y x O1.5 (x=0.2, 0.3, 0.4, and 0.5, respectively) were prepared. The crystalline structures of them were determined by X-ray powder diffraction and the data were analyzed by Rietveld refinement method. Two phases, face centered cubic (FCC) and rhombohedral structures, were observed. When annealed at 1,000 °C, the samples are FCC structure. But for Bi0.8Y0.2O1.5, annealed at 650 °C, the sample shows a rhombohedral structure. The change of the structures of the samples were studied and discussed.

Bismuth yttrium oxide X-ray diffraction Rietveld refinement 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • X. J. Zhang
    • 1
  • W. T. Jin
    • 1
  • S. J. Hao
    • 1
  • Y. Zhao
    • 2
  • H. Zhang
    • 1
  1. 1.Materials Physics Laboratory, State Key Laboratory for Mesoscopic Physics, Department of PhysicsPeking UniversityBeijingChina
  2. 2.Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), Superconductivity R&D Center (SRDC)Southwest Jiaotong UniversityChengduChina

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