Bulletin of Materials Science

, Volume 22, Issue 3, pp 257–263 | Cite as

Superconducting and non-superconducting PrBa2Cu3O7

  • Y Nishihara
  • Z Zou
  • J Ye
  • K Oka
  • T Minawa
  • H Kawanaka
  • H Bando
High Tc Superconductors: Thin Films And Vortex Pinning


Superconducting properties of Pr123 and microscopic structural differences between the superconducting and non-superconducting Pr123 crystals are reviewed. It is shown that the variety of physical properties of Pr123 is closely related to Cu deficiency at the chain site and our experimental results are consistently explained with a model that the Pr 4f-O 2p hybridization forms a narrow band and carriers are localized by a kind of atomic disorder in non-superconducting crystals.


Pr123 superconductivity Cu deficiency 


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Copyright information

© Indian Academy of Sciences 1999

Authors and Affiliations

  • Y Nishihara
    • 1
    • 2
  • Z Zou
    • 1
  • J Ye
    • 3
  • K Oka
    • 1
  • T Minawa
    • 1
    • 2
  • H Kawanaka
    • 1
  • H Bando
    • 1
  1. 1.Electrotechnical LaboratoryTsukuba, IbarakiJapan
  2. 2.Faculty of ScienceIbaraki UniversityMito, IbarakiJapan
  3. 3.National Research Institute for MetalsTsukuba, IbarakiJapan

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