Strong peak in Tc of Sr2RuO4 under uniaxial pressure

Research output: Contribution to journalArticlepeer-review


  • Alexander Steppke
  • Lishan Zhao
  • Mark E. Barber
  • Thomas Scaffidi
  • Fabian Jerzembeck
  • Helge Rosner
  • Alexandra S. Gibbs
  • Yoshiteru Maeno
  • Steven H. Simon

Colleges, School and Institutes


The material Sr2RuO4 has long been thought to exhibit an exotic, odd-parity kind of superconductivity, not unlike the superfluidity in 3He. How would perturbing this material's electronic structure affect its superconductivity? Steppke et al. put the material under large uniaxial pressure and found that the critical temperature more than doubled and then fell as a function of strain (see the Perspective by Shen). The maximum critical temperature roughly coincided with the point at which the material's Fermi surface underwent a topological change. One intriguing possibility is that squeezing changed the parity of the superconducting gap from odd to even.


Original languageEnglish
Article numbereaaf9398
Number of pages9
Issue number6321
Publication statusPublished - 13 Jan 2017