Abstract
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 language | English |
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Article number | eaaf9398 |
Number of pages | 9 |
Journal | Science |
Volume | 355 |
Issue number | 6321 |
DOIs | |
Publication status | Published - 13 Jan 2017 |