Epitaxial growth of YBa₂Cu₃O_7-δ films on rolling-assisted biaxially textured substrates (RABiTS) produced by pulsed laser ablation at low temperatures

Epitaxial YBa₂Cu₃O_7-δ(YBCO) films were fabricated using laser ablation of YBCO onto rolling-assisted-biaxially-textured-substrates (RABiTS) at a temperature of 650 °C. The configuration of the sample was YBCO/YSZ /CeO₂/Ni. The CeO₂ and YSZ buffer layers were deposited using electron-beam evaporation and sputtering, respectively. Both of these techniques are considered to be industrially scalable. SEM images of the YBCO reveal a range of structures ranging from jumbled a-axis to dense c-axis morphologies depending upon the deposition conditions. X-ray θ-2θ scans show a similar c-axis dependence on the deposition conditions.