title: Strong increase of T(c) of Sr₂RuO₄ under both tensile and compressive strain.
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.
authors.affiliation: Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany.
authors.forename: Clifford W
authors.initials: CW
authors.lastname: Hicks
authors.forename: Daniel O
authors.initials: DO
authors.lastname: Brodsky
authors.forename: Edward A
authors.initials: EA
authors.lastname: Yelland
authors.forename: Alexandra S
authors.initials: AS
authors.lastname: Gibbs
authors.forename: Jan A N
authors.initials: JA
authors.lastname: Bruin
authors.forename: Mark E
authors.initials: ME
authors.lastname: Barber
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Edkins
authors.forename: Keigo
authors.initials: K
authors.lastname: Nishimura
authors.forename: Shingo
authors.initials: S
authors.lastname: Yonezawa
authors.forename: Yoshiteru
authors.initials: Y
authors.lastname: Maeno
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Mackenzie