Defect formation and carrier doping in epitaxial films of the ''parent'' compound SrCuO(sub 2): Synthesis of two superconductors descendants

摘要

The infinite layer or parent compounds ACuO(sub 2) (A: Ca-Sr-Ba) constitute the simplest copper oxygen perovskites that contain the CuO(sub 2) sheets essential for superconductivity. The stabilization of these basic ''building blocks'' as epitaxial films, therefore, provides alluring opportunities towards the search for new superconducting compounds and elucidation of the underlying mechanisms. In this work, general trends of the defect formation and carrier doping for epitaxial films of the intermediate endmember SrCuO(sub 2) are reviewed. First results are presented from successful attempts to induce hole-doped superconductivity via the processing-controlled incorporation of charge reservoir layers.