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Effect of the thermal treatment on the superconductivity behaviour of the YBa2Cu3O7−xphase

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/0921-4534(88)90640-5
Disciplines
  • Physics

Abstract

Abstract Thermal treatment of the original superconducting phase YBa 2Cu 3O 7−x in the temperature range of 300–800°C showed a mutual effect of the oxygen stoichiometry, ordering of the oxygen vacancies and microstructure. Two superconducting phases having T C ≈ 90 K and T C ≈ 50 K, separated by two-phase coexistence region were found in the samples a quenched down from the respective temperatures.

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