Superconducting Mixed-Metal Oxide Compounds of the Type Sr2Ln1.5Ce0.5MCu2O10−δ, Ln = Sm, Eu, M = Nb, Ta
A simple method is developed for the preparation of good quality superconducting samples of the composition Sr2(Ln,Ce)2MCu2O10−δ, Ln = Sm, Eu; M = Nb, Ta. Structural, microwave absorption, magnetic and superconducting properties are reported.
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