Ferroelectricity and structure of BaTiO3 grown on YBa2Cu3O7-δ thin films Ch. Schwan, F. Martin, G. Jakob, J. C. Martinez and H. Adrian Eur. Phys. J. B, 14 3 (2000) 477-481 Published online: 15 April 2000 DOI: 10.1007/s100510051056