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The superconductivi...
The superconductivity of Sr2RuO4 under c-axis uniaxial stress
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- Jerzembeck, Fabian (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.
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- Røising, Henrik S. (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),NORDITA SU
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- Steppke, Alexander (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.
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- Rosner, Helge (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.
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- Sokolov, Dmitry A. (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.
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- Kikugawa, Naoki (författare)
- Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan.
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- Scaffidi, Thomas (författare)
- Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.;Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
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- Simon, Steven H. (författare)
- Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3PU, England.
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- Mackenzie, Andrew P. (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.;Univ St Andrews, Sch Phys & Astron, Scottish Univ Phys Alliance, St Andrews KY16 9SS, Fife, Scotland.
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- Hicks, Clifford W. (författare)
- Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany.;Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England.
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Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany Nordiska institutet för teoretisk fysik (Nordita) (creator_code:org_t)
- 2022-08-06
- 2022
- Engelska.
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Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 13:1
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Applying in-plane uniaxial pressure to strongly correlated low-dimensional systems has been shown to tune the electronic structure dramatically. For example, the unconventional superconductor Sr2RuO4 can be tuned through a single Van Hove point, resulting in strong enhancement of both T-c and H-c2. Out-of-plane (c axis) uniaxial pressure is expected to tune the quasi-two-dimensional structure even more strongly, by pushing it towards two Van Hove points simultaneously. Here, we achieve a record uniaxial stress of 3.2 GPa along the c axis of Sr2RuO4. H-c2 increases, as expected for increasing density of states, but unexpectedly T-c falls. As a first attempt to explain this result, we present three-dimensional calculations in the weak interaction limit. We find that within the weak-coupling framework there is no single order parameter that can account for the contrasting effects of in-plane versus c-axis uniaxial stress, which makes this new result a strong constraint on theories of the superconductivity of Sr2RuO4. In the superconductor Sr2RuO4, in-plane strain is known to enhance both the superconducting transition temperature Tc and upper critical field Hc2, but the effect of out-of-plane strain has not been studied. Here, the authors find that Hc2 is enhanced under out-of-plane strain, but Tc unexpectedly decreases.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Jerzembeck, Fabi ...
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Røising, Henrik ...
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Steppke, Alexand ...
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Rosner, Helge
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Sokolov, Dmitry ...
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Kikugawa, Naoki
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Scaffidi, Thomas
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Simon, Steven H.
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Mackenzie, Andre ...
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Hicks, Clifford ...
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- NATURVETENSKAP
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NATURVETENSKAP
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TEKNIK OCH TEKNO ...
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och Nanoteknik
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Kungliga Tekniska Högskolan
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Stockholms universitet