H. Sasakura et K. Yoshida, SUPERCONDUCTIVITY IN THE TH-CONTAINED CUPRATE(BI2-YPBY)SR-2(EU2-XTHX)CU2OZ, Physica. C, Superconductivity, 267(1-2), 1996, pp. 19-23
We report the first observation of ''probable p-type'' superconductivi
ty in an actinide element Th-contained (Bi2-yPby)Sr-2(Eu2-xThx)Cu2Oz s
ystem. The superconducting samples are of almost the single-2222 phase
. Among them, the sample with a nominal composition of Bi1.2Pb0.8Sr2Eu
1.8Th0.2Cu2Oz shows the highest T-c of about 15 K.