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Superconducting transition temperature, composition and lattice parameter of YBCO films sputter-deposited at low oxygen pressure.

[In Japanese. / En japonais.]

Author(s) : MORITA H., SUZUKI M., TAKAHASHI K.

Type of article: Article

Summary

Superconducting YBCO films have been prepared by on-axis direct current magnetron sputtering from single sintered targets with various compositions, and relationships of transition temperature to film composition and c-axis lattice parameter have been examined. Films with zero-resistance transition temperature exceeding 85 K are more easily obtained using barium-poorer targets than stoichiometry under the conditions of lower oxygen pressures, 3-10 millitorr. Relations with copper-barium and barium-yttrium ratios are discussed.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1994-0042
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 27 - n. 5
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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