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The use of high temperature superconductor for device application has made the compatibility of the film and substrate an important issue. Garnets having reasonably low dielectric constant and low dielectric losses can be viable low cost substrate materials for the microwave devices. Garnet single crystals like Gd_{3}Ga_{5}O_{12} (GGG), Y_{3}Ga_{5}O_{12} (YGG), Y_{3}Al_{5}O_{12} (YAG) etc. can be...
The early stages of growth and the evolution of surface microstructure of epitaxial c-axis YBa_{2}Cu_{3}O_{7-x} thin films were studied as a function of film thickness, growth temperature, and growth rate. The films were grown in situ on as-polished or annealed MgO(100) substrates by off-axis magnetron sputtering. Atomic force microscopy was used to observe the surface microstructure. From the results...
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