Magnetic characteristics of K-, Na- and Rb-doped YBCO ceramics

T. Nurgaliev, S. Miteva, I. Nedkov, A. Veneva

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Abstract

The magnetic behavior of Na-, K-, Rb-doped YBCO ceramic samples is investigated at ac magnetic field at 77 K. For small Rb and Na concentrations, an increase of the field-dependent component of the critical current is observed. High dopant concentrations lead to deterioration of the critical parameters of the YBCO material. The results are interpreted as due to 'soiling' of the intergranular boundary by the dopant impurities and Cu excess.

Original languageEnglish
Pages (from-to)1305-1306
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume140-144
Issue numberPART 2
DOIs
Publication statusPublished - 1995 Feb

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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