Interference No. 101,981
wherein A is Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or mixtures
thereof;
B is Ba, Sr, or mixtures thereof; and
y is a value that provides the composition with zero electrical resistance at a
temperature of 700 K or above said composition having a purity of at least 90%.
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