Strong peak in Tc of Sr2RuO4 under uniaxial pressure

Alexander Steppke; Lishan Zhao; Mark E. Barber; Thomas Scaffidi; Fabian Jerzembeck; Helge Rosner; Alexandra S. Gibbs; Yoshiteru Maeno; Steven H. Simon; Andrew P. Mackenzie; Clifford W. Hicks

doi:10.1126/science.aaf9398

Strong peak in T_cof Sr₂RuO₄ under uniaxial pressure

Alexander Steppke, Lishan Zhao, Mark E. Barber, Thomas Scaffidi, Fabian Jerzembeck, Helge Rosner, Alexandra S. Gibbs, Yoshiteru Maeno, Steven H. Simon, Andrew P. Mackenzie, Clifford W. Hicks

Physics and Astronomy

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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
Article number	eaaf9398
Number of pages	9
Journal	Science
Volume	355
Issue number	6321
DOIs	https://doi.org/10.1126/science.aaf9398
Publication status	Published - 13 Jan 2017

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Steppke2017Strong
This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 13 Jan 2017, Vol. 355, Issue 6321, DOI: 10.1126/science.aaf9398
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Cite this

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title = "Strong peak in Tc of Sr2RuO4 under uniaxial pressure",

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.",

author = "Alexander Steppke and Lishan Zhao and Barber, {Mark E.} and Thomas Scaffidi and Fabian Jerzembeck and Helge Rosner and Gibbs, {Alexandra S.} and Yoshiteru Maeno and Simon, {Steven H.} and Mackenzie, {Andrew P.} and Hicks, {Clifford W.}",

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T1 - Strong peak in Tc of Sr2RuO4 under uniaxial pressure

AU - Steppke, Alexander

AU - Zhao, Lishan

AU - Barber, Mark E.

AU - Scaffidi, Thomas

AU - Jerzembeck, Fabian

AU - Rosner, Helge

AU - Gibbs, Alexandra S.

AU - Maeno, Yoshiteru

AU - Simon, Steven H.

AU - Mackenzie, Andrew P.

AU - Hicks, Clifford W.

PY - 2017/1/13

Y1 - 2017/1/13

N2 - 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.

AB - 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.

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DO - 10.1126/science.aaf9398

M3 - Article

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VL - 355

JO - Science

JF - Science

IS - 6321

M1 - eaaf9398

ER -

Strong peak in Tc of Sr2RuO4 under uniaxial pressure

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Strong peak in T_cof Sr₂RuO₄ under uniaxial pressure