Characterization of the europium substituted superconducting Bi 2Sr2CaCu2O8+y phase

M. Karppinen*, O. Antson, P. Baules, T. Karlemo, T. Katila, J. Linden, M. Lippmaa, L. Niinisto, C. Roucau, I. Tittonen, K. Ullako

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Effects of europium substitution on the stoichiometry, structure and superconductivity of the Bi2Sr2CaCu2O 8+y phase have been investigated. Partial replacement by calcium by europium promotes the single-phase formation and leads to an uptake of extra oxygen into the structure. Oxygen content in the Bi2Sr 2Ca1-xEuxCu2O8+y materials was determined by the thermogravimetric hydrogen reduction method. In an attempt to locate the intercalated oxygen atoms, X-ray, neutron and electron diffraction techniques were used. In addition, the samples were characterized by AC magnetic susceptibility measurements as well as by 151Eu Mossbauer spectroscopy. The applicability of these methods and the results obtained thereby are discussed.

Original languageEnglish
Article number004
Pages (from-to)476-481
Number of pages6
JournalSuperconductor Science and Technology
Volume5
Issue number8
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

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