Crystal engineering of YBa2Cu3O7-δ structures

Jiping Zhou, John McDevitt

Research output: Contribution to journalArticle

Abstract

In order to produce more stable and processable forms of YBa2Cu3O7-δ superconductors, a series of cation substitution reactions have been completed. Compounds in the family of Y1-yCayBa1-yLayCu3O 7-δ display an increased corrosion resistance with increasing substitution level. The composition of Y0. 6Ca0. 4Ba1. 6La0. 4Cu3O6. 96 (Tc = 80 K) is found to be at least 100 times more stable than the parent compound, YBa2Cu3O6. 94. In this paper, compositions yielding transition temperature above 83-85 K have been identified in YBa2-xSrxCu3O7-δ and Gd1-xCaxBa2-yLayCu3O 7-δ systems suggesting that the surface reactivity, processability and superconducting properties can be tailored with the use of the appropriate cation compositions. Rational approaches for the systematic tailoring of high-Tc superconductors based on lattice engineering approaches are thus developed.

Original languageEnglish (US)
Pages (from-to)2071-2074
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume7
Issue number2 PART 2
StatePublished - 1997

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Crystal engineering
engineering
Superconducting materials
Cations
Substitution reactions
Positive ions
Chemical analysis
substitutes
crystals
cations
corrosion resistance
Superconducting transition temperature
Corrosion resistance
reactivity
transition temperature
barium copper yttrium oxide

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Crystal engineering of YBa2Cu3O7-δ structures. / Zhou, Jiping; McDevitt, John.

In: IEEE Transactions on Applied Superconductivity, Vol. 7, No. 2 PART 2, 1997, p. 2071-2074.

Research output: Contribution to journalArticle

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