Abstract
Sr 1 − x La x Cu O 2 − δ (x=0.10–0.20) thin films exhibiting an oxygen-deficient 22ap×22ap×c structure (ap and c represent the cell parameters of the perovskite subcell) were epitaxially grown by means of pulsed laser deposition in low-pressure oxygen ambient. (001) KTaO3 and (001) SrTiO3 single crystals were used as substrates, with BaTiO3 as buffer layer. The Sr1−xLaxCuO2−δ films were oxidized during cooling down in order to yield the infinite-layer-type structure. By applying this method, high quality single-phase Sr1−xLaxCuO2 thin films could be obtained for 0.10⩽x⩽0.175 doping range. The films grown on BaTiO3∕KTaO3 show superconductivity for 0.15⩽x⩽0.175 with optimum doping at x=0.15, in contrast with previously reported data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
