HIGH-T(C) FILMS ON GGG SUBSTRATES

The use of high-temperature superconductors (HTSC) for device applicat ion has made the compatibility of the film and substrate an important concern. The quest for an ideal substrate material for the growth Of H TSC films with excellent properties for device applications is an acti ve area of research and needs further investigation. We have examined garnet as a potential substrate material suitable for microwave applic ations, and we compare its various physical properties with those of o ther well-known substrate materials.