Superconductors under stress

Laurens Jansen () and Ruud Block
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Laurens Jansen: c/o Institute of Theoretical Physics
Ruud Block: J. H. vant Hoff Institute, University of Amsterdam

Nature, 1999, vol. 399, issue 6732, 114-114

Abstract: Abstract Locquet et al.1 reported a doubling of the critical temperature (T c) of the superconductor La1.9Sr0.1CuO4, from 25 to 49 K, in compressively strained thin films on a SrLaAlO4substrate. This led to speculation that values of T cclose to or even beyond 200 K could be obtained without excessive external pressure, starting from an unstrained cuprate with high T c(>100 K). The stress would be applied to the ab (CuO2) plane of this system of tetragonal symmetry. Such expectations are theoretically unrealistic.

Date: 1999
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DOI: 10.1038/20097

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