Abstract
YBa2Cu3O7 (YBCO) films were simultaneously grown on both silver and MgO substrates by a chemical vapor deposition (CVD) technique. It is found that the transportation of silver occurs through the evaporation of silver from the silver substrate at the processing temperature of 850°C. The effect of the evaporation of silver during deposition was investigated. The silver vapor travels a distance of a few millimeters over the surface of a neighboring MgO substrate. It is also demonstrated for the first time that the presence of silver vapor causes some microstructural changes in the film grown on the MgO substrate.
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