HIGH Tc SUPERCONDUCTIVITY OF Sr-La-Cu-O AND Ba-Y-Cu-O THIN FILMS

Abstract

In a very short time after it was reported1 that perovskite-type Ba-La-Cu oxide system could have high temperature superconductivity, many new results were reported.2,3 Later, Y was substituted for La to form Ba-Y-Cu oxides and the Tc rose to the liquid nitrogen region.4 In this report we describe the results obtained with the Sr-La-Cu-O and Ba-Y-Cu-O thin films.