Study of internal strains of YBa2Cu3Oy system with cation replacements: YBa2Cu3Oy system: internal strains

  • Gantis, Anestis
  • Γαντής, Ανέστης
Publication date
January 2003
Publisher
Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

Abstract

The purpose of this study is to systematically study the internal strains induced by cation replacements in the High Temperature Superconductors of YBa2Cu3Oy system in an attempt to correlate any structural differences with other physical properties, thus leading to a better understanding of these systems.Of particular interest in this regard are the mixed compounds of formula R1+xR'xBa2Cu3Oy, where R and R' are Y or rare earth. Cation replacement is expected to introduce additional strains in the structure, which are due to various phenomena (magnitude effect due to the different ionic radius of the atoms R and R', magnetic phenomenon in case there is a different magnetic moment between the two ions, rearrangement of the charge due to diff...

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