Journal of Materials Science, Vol.38, No.3, 481-483, 2003
Ba2HoNbO6: A new perovskite ceramic substrate for superconducting YBa2Cu3O7-delta thick film (T-c(0)=92 K)
A complex perovskite oxide Ba2HoNbO6 has been developed as a non-reacting substrate for YBa2Cu3O7-delta superconducting film with lattice constant a = 8.3905 Angstrom. The dielectric constant (30) and loss factor value (5 x 10(-3)) of the material are in the range suitable for its use as substrate for microwave applications. A YBa2Cu3O7-delta superconducting thick film dip coated on Ba2HoNbO6 substrate gave a Tc(0) of 92 K and current density of similar to1.2 x 10(4) A cm(-2). (C) 2003 Kluwer Academic Publishers.