Sputter deposition of YBa2Cu3O7−<i>y</i> thin films

Richard M. Silver, J. Talvacchio, Alex de Lozanne

Applied Physics Letters · 1987 · 52 citations · 8 references

Concepts

Abstract

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.

References

8