Superconductivity of Sr-La-Cu Oxides Prepared by Coprecipitation Method

Abstract
Superconducting properties in Sr-La-Cu-O system prepared by the coprecipitation method were studied. The highest T c of the samples was about 42 K, rather higher than that of the samples by a solid-state reaction. It was found that the composition (especially that of Sr) of the sintered samples was different from the nominal formation.