Further improvement of the superconductivity in F-doped BiSrCaCuO superconductors

Abstract A new method for the synthesis of bulk superconductors (Bi,Pb)SrCaCu(O,F) is reported. Using PbF 2 as one of the reagents, the sintering temperature is raised step by step, and a sample of single phase with zero resistance temperature T c0 = 121.0 K can be obtained.