Nb and Ta substitutions in YBa2Cu3O7−x a
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C. Greaves; P.R. Slater
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Article
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1989
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Elsevier Science
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English
⚖ 455 KB
Nb and Ta substitutions in YBa2Cu307 and related phases have been examined in an attempt to synthesise phases of formula LBa2Cu2MOs (L = rare earth, M = Nb, Ta), in which the square planar Cu I sites of the YBa2Cu307 structure are occupied by M, and complete oxygen occupancy in the basal plane of th