New high-temperature superconductor Bi1Ca1Sr0.7AI0.5Cu4Oy
Aleksandrov K. S. ,Vasil'ev A. D. , Zvegintsev S. A. , Petrov M. I. , Khrustalev B. P.
Phases with superconducting transition temperatures of 104 К and 75 К were detected in the ceramic compound Bi,Ca,Sr0 7 Al0>5 Cu4Oy. The results of measurements of the temperature dependence of the resistivity and magnetization of the samples are presented.