Characterization of micro-bridges in SQUIDs YBCO thin film

Here, it is studied a fabrication of Superconducting Quantum Interference Devices (SQUIDs) on the grain boundaries (GB) Josephson Junctions in High Critical Temperature Superconductors (HTS) thin films produced by pulsed laser deposition. YBa2Cu3O7-δ thin films (YBCO) are formed on SrTiO3 bicrystal substrates with various grain boundary misorientation angles, and different micro-bridges, as well. The growth conditions of the YBCO thin film, in addition their influence on the properties of the different angles, are investigated. Furthermore, the angles influence the critical current Ic in the region of the grain boundary. As well as the properties of the varying patterned micro-bridges width of Josephson junctions are presented. In some cases, it is even found an increase in the resulting IcRNproduct. X-ray diffraction and EDX measurements suggest a preferred orientation of the (110) lattice plane parallel to the substrate surface.