Suppression of the “notch effect” in microwave surface resistance in YBa2Cu3O7 films on MgO (100) substrate by deposition of ultra-thin SrTiO3 seed layersJ.-P. Contour, C. Couvert, O. Durand, Y. Lemaître, R. Lyonnet and B. MarcilhacEur. Phys. J. AP, 5 2 (1999) 215DOI: https://doi.org/10.1051/epjap:1999130