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Strong increase of Tc of Sr2RuO4 under both tensile and compressive strain

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

Clifford W. Hicks, Daniel O. Brodsky, Edward A. Yelland, Alexandra S. Gibbs, Jan A. N. Bruin, Mark E. Barber, Stephen D. Edkins, Keigo Nishimura, Shingo Yonezawa, Yoshiteru Maeno, Andrew P. Mackenzie

School/Research organisations

Abstract

A sensitive probe of unconventional order is its response to a symmetry-breaking field. To probe the proposed px ± ipy 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 Tc. ⟨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.

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Details

Original languageEnglish
Pages (from-to)283-285
Number of pages3
JournalScience
Volume344
Issue number6181
DOIs
Publication statusPublished - 18 Apr 2014

    Research areas

  • Upper-critical field, Unconventional superconductivity, Gap structure, Symmetry, Transition, Scattering, Anistropy, Model

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