Improved barium fluoride process YBa2Cu3)7-x
films via post-anneal monitoring |
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Authors: | Fernando H garzon Ian D Raistrick David R Brown |
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Affiliation: | (1) Los Alamos National Laboratory, Mail Stop D 429, 87545 Los Alamos, NM |
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Abstract: | The continuous monitoring of the conversion, of Y, Cu and BaF2 precursors to form superconductor thin films has been achieved using a fluorine-specific-ion electrode immersed in an effluent
gas-washing cell. High-quality thin films of YBa2Cu3O7-x
deposited on NdGaO3, LaA103 and LaGaO3, have been produced by limiting the wet oxygen annealing phase of the post-deposition anneal. When the films were over-annealed
in humidified oxygen the superconducting transition temperature as measured by inductive methods and the crystal quality,
determined by x-ray rocking curves were degraded. |
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Keywords: | YBCO thin films NdGaO3 substrate LaA103 substrate post annealing |
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