Strong increase of Tc of Sr2RuO4 under both tensile and compressive strain

Clifford W. Hicks; Daniel O. Brodsky; Edward A. Yelland; Alexandra S. Gibbs; Jan A. N. Bruin; Mark E. Barber; Stephen D. Edkins; Keigo Nishimura; Shingo Yonezawa; Yoshiteru Maeno; Andrew P. Mackenzie

doi:10.1126/science.1248292

Strong increase of T_c of Sr₂RuO₄ under both tensile and compressive strain

Clifford W. Hicks^*, Daniel O. Brodsky, Edward A. Yelland, Alexandra S. Gibbs, Jan A. N. Bruin, Mark E. Barber, Stephen D. Edkins, Keigo Nishimura, Shingo Yonezawa, Yoshiteru Maeno, Andrew P. Mackenzie

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	283-285
Number of pages	3
Journal	Science
Volume	344
Issue number	6181
DOIs	https://doi.org/10.1126/science.1248292
Publication status	Published - 18 Apr 2014

Keywords

Upper-critical field
Unconventional superconductivity
Gap structure
Symmetry
Transition
Scattering
Anistropy
Model

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10.1126/science.1248292

Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems
Wahl, P. (PI), Baumberger, F. (CoI), Davis, S. (CoI), Green, A. (CoI), Hooley, C. (CoI), Keeling, J. (CoI) & Mackenzie, A. (CoI)
EPSRC
1/09/11 → 31/08/17
Project: Standard

Andrew Mackenzie
- apm9st-andrews.acuk
- School of Physics and Astronomy - Professor
- Condensed Matter Physics
Person: Academic

Cite this

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title = "Strong increase of Tc of Sr2RuO4 under both tensile and compressive strain",

abstract = "A sensitive probe of unconventional order is its response to a symmetry-breaking field. To probe the proposed px ± ipy 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 Tc. ⟨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.",

keywords = "Upper-critical field, Unconventional superconductivity, Gap structure, Symmetry, Transition, Scattering, Anistropy, Model",

author = "Hicks, {Clifford W.} and Brodsky, {Daniel O.} and Yelland, {Edward A.} and Gibbs, {Alexandra S.} and Bruin, {Jan A. N.} and Barber, {Mark E.} and Edkins, {Stephen D.} and Keigo Nishimura and Shingo Yonezawa and Yoshiteru Maeno and Mackenzie, {Andrew P.}",

note = "Funding: This work is supported by the EPSRC UK.",

year = "2014",

month = apr,

day = "18",

doi = "10.1126/science.1248292",

language = "English",

volume = "344",

pages = "283--285",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6181",

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TY - JOUR

T1 - Strong increase of Tc of Sr2RuO4 under both tensile and compressive strain

AU - Hicks, Clifford W.

AU - Brodsky, Daniel O.

AU - Yelland, Edward A.

AU - Gibbs, Alexandra S.

AU - Bruin, Jan A. N.

AU - Barber, Mark E.

AU - Edkins, Stephen D.

AU - Nishimura, Keigo

AU - Yonezawa, Shingo

AU - Maeno, Yoshiteru

AU - Mackenzie, Andrew P.

N1 - Funding: This work is supported by the EPSRC UK.

PY - 2014/4/18

Y1 - 2014/4/18

N2 - A sensitive probe of unconventional order is its response to a symmetry-breaking field. To probe the proposed px ± ipy 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 Tc. ⟨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.

AB - A sensitive probe of unconventional order is its response to a symmetry-breaking field. To probe the proposed px ± ipy 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 Tc. ⟨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.

KW - Upper-critical field

KW - Unconventional superconductivity

KW - Gap structure

KW - Symmetry

KW - Transition

KW - Scattering

KW - Anistropy

KW - Model

U2 - 10.1126/science.1248292

DO - 10.1126/science.1248292

M3 - Article

SN - 0036-8075

VL - 344

SP - 283

EP - 285

JO - Science

JF - Science

IS - 6181

ER -

Strong increase of Tc of Sr2RuO4 under both tensile and compressive strain

Abstract

Keywords

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Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

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Andrew Mackenzie

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Strong increase of T_c of Sr₂RuO₄ under both tensile and compressive strain