Multisource-sputtered ErBa2Cu3O7−x films on single-crystal and buffered crystalline substrates |
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Authors: | R W Simon C E Platt A E Lee K P Daly M K Wagner |
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Affiliation: | 1. TRW Space and Technology Group, 90278, Redondo Beach, California
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Abstract: | High-quality superconducting films of erbium-barium-copper-oxide have been produced in a multisource sputtering system on a variety of substrates, including buffered sapphire and silicon wafers as well as various single-crystal materials. Fine-grained polycrystalline films with narrow (<4 K) resistive transitions have been grown on a number of different substrates. The use of erbium in the 12–3 compound leads to improved film morphology and to more forgiving conditions for establishing of the superconducting phase. Sputtered neutral mass spectroscopy (SNMS) yields useful information about the compositional profile of the films. |
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