Superconductivity in SrCuO 2 -BaCuO 2 Superlattices: Formation of Artificially Layered Superconducting Materials
- 30 September 1994
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 265 (5181) , 2074-2077
- https://doi.org/10.1126/science.265.5181.2074
Abstract
Pulsed-laser deposition was used to synthesize artificially layered high-temperature superconductors. Thin-film compounds were formed when the constraint of epitaxy was used to stabilize SrCuO 2 -BaCuO 2 superlattices in the infinite layer structure. Using this approach, two new structural families, Ba 2 Sr n –1 ,Cu n +1 O 2 n +2+δ and Ba 4 Sr n –1 Cu n +3 O 2 n +6+δ , have been synthesized; these families superconduct at temperatures as high as 70 kelvin.Keywords
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