Properties of the electron-doped infinite-layer superconductor Sr${}_{1-x}$La${}_x$CuO${}_2$ epitaxially grown by pulsed laser deposition

Abstract

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.

16 pages, 14 figures

References in corpus (2)

• Transport, magnetic, and structural properties of La${}_{0.7}$Ce${}_{0.3}$MnO${}_3$ thin films. Evidence for hole-doping
• Influence of oxygen reduction on the structural and electronic properties of electron-doped Sr1-xLaxCuO2 thin films

Cited by in corpus (2)

• Phase-sensitive evidence for dx2-y2-pairing symmetry in the parent-structure high-Tc cuprate superconductor Sr1-xLaxCuO2
• Molecular beam epitaxy growth and surface structure of Sr1-xNdxCuO2 cuprate films