Applied Physics Letters · 1987 · 52 citations · 8 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsSolid State PhysicsThin FilmsSuperconducting MaterialsSuperconducting Thin FilmsThin Film AnnealingThin-film DepositionThin-film MaterialsHigh-temperature SuperconductorsMagnetron SputteringOxygen Content AnalysisSputter DepositionSputteringSuperconducting PropertiesThin-film SuperconductorsX-ray Diffraction Analysis
Thin films of YBa2Cu3O7−y were prepared by magnetron sputtering. The films were characterized by x-ray diffraction, in situ x-ray photoelectron spectroscopy to determine the as-deposited oxygen content for various substrate temperatures, and scanning electron microscopy to analyze the microstructure. The orthorhombic phase was observed after an ex situ 700 °C anneal. We have obtained films which were completely superconducting at 82 K with 6 K transition widths.
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Thin superconducting oxide films
R. B. Laibowitz, R. H. Koch, P. Chaudhari et al. · Physical review. B, Condensed matter · 1987 · 286 citations