Properties of the electron-doped infinite-layer superconductor   Sr$_{1-x}$La$_{x}$CuO$_{2}$ epitaxially grown by pulsed laser deposition
  Thin films of the electron-doped infinite-layer cuprate superconductor Sr$_{1-x}$La$_x$CuO$_2$ (SLCO) with doping $x \approx 0.15$ were grown by means of pulsed laser deposition. (001)-oriented KTaO$_3$ and SrTiO$_3$ single crystals were used as substrates. In case of SrTiO$_3$, a BaTiO$_3$ thin film was deposited prior to SLCO, acting as buffer layer providing tensile strain to the SLCO film. To induce superconductivity, the as-grown films were annealed under reducing conditions, which will be described in detail. The films were characterized by reflection high-energy electron diffraction, atomic force microscopy, x-ray diffraction, Rutherford backscattering spectroscopy, and electric transport measurements at temperatures down to $T = 4.2\,$K. We discuss in detail the influence of different process parameters on the final film properties. 
Jochen Tomaschko and Victor Leca and Teresa Selistrovski and Sebastian   Diebold and Josef Jochum and Reinhold Kleiner and D...
cond-mat.supr-con