The effect of thermal cycling on two-step enhanced superconducting transition in Bi1.6Pb0.4Sr2Ca1Cu2O8+x

Abstract A superconducting drop around 120 K with zero resistance temperature around 101K has been obtained in Bi 1.6 Pb 0.4 Sr 2 Ca 1 Cu 2 O 8+ x samples. Study of effect of thermal cycling on the superconducting properties has suggested that both the above enhanced transitions belong to the low- T c Bi-2212 phase.