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Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain

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Hicks,  Clifford W.
Clifford Hicks, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Brodsky,  Daniel O.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Barber,  Mark E.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Mackenzie,  Andrew P.
Andrew Mackenzie, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Hicks, C. W., Brodsky, D. O., Yelland, E. A., Gibbs, A. S., Bruin, J. A. N., Barber, M. E., et al. (2014). Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain. Science, 344(6181), 283-285. doi:10.1126/science.1248292.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-7F0D-A
Abstract
A sensitive probe of unconventional order is its response to a symmetry-breaking field. To probe the proposed p(x) +/- ip(y) topological superconducting state of Sr2RuO4, we have constructed an apparatus capable of applying both compressive and tensile strains of up to 0.23%. Strains applied along < 100 > crystallographic directions yield a strong, strain-symmetric increase in the superconducting transition temperature T-c. < 110 > strains give a much weaker, mostly antisymmetric response. As well as advancing the understanding of the superconductivity of Sr2RuO4, our technique has potential applicability to a wide range of problems in solid-state physics.