COMPATIBILITY OF HTC SUPERCONDUCTOR TECHNOLOGY WITH SAW TECHNIQUE

First experiments with Y-Ba-Cu-O ceramic thin films on the surface of piezoelectric substrates are performed in the aim to clarify the featu res of possible future superconductive-acoustic devices. The technolog ical compatibility of LiNbO3 substrate to Y1Ba2Cu3O7-x granular and al most epitaxial films is observed without loosing high temperature supe rconductive (HTc) and piezoelectrical properties. Granular and epitaxi al films influence on surface acoustic waves (SAW) behavior is investi gated in simplest delay lines with HTc superconductive Interdigital tr ansducers (ITD). Sharp changes in transmission coefficient are observe d near the superconducting transition. Future possible switchable devi ces and elements are discussed.