Superconductivity of (Y1-xREx)Ba2Cu3O7-δ system

Kyun Nahm, Jung Soo Kim, Kyeong Bock Lee, Deoug Wha Shong, Bo Young Cha, Chul Koo Kim

Research output: Contribution to journalArticlepeer-review


Polycrystalline samples of the superconducting oxides (Y1-xREx)Ba2Cu3O7-δ (RE = Er and Dy) with x=0, 0.2, 0.4, 0.6, 0.8 and 1.0 were prepared. From the X-ray diffraction and the electrical resistivity measurements, it was found that Tc and the unit cell volume have common peaks near x≃0.4. Close examination of previously published data on the (Y1-xREx)Ba2Cu3O7-δ system also indicate that an anomaly exists near x-0.4. This anomaly is ascribed to an anomalous change of δ in oxygen near x≃0.4.

Original languageEnglish (US)
Pages (from-to)1762-1764
Number of pages3
JournalJournal of Materials Science
Issue number3
StatePublished - Mar 1 1990

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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