Clifford W. Hicks,Daniel Brodsky,Edward A. Yelland,Alexandra S. Gibbs,J. A. N. Bruin,Mark E. Barber,Stephen Edkins,Keigo Nishimura,Shingo Yonezawa,Y. Maeno,A. P. Mackenzie
出处
期刊:Science [American Association for the Advancement of Science (AAAS)] 日期:2014-04-17卷期号:344 (6181): 283-285被引量:320
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.