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Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress

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Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress. / Grinenko, Vadim; Ghosh, Shreenanda; Sarkar, Rajib; Orain, Jean-Christophe; Nikitin, Artem; Elender, Matthias; Das, Debarchan; Guguchia, Zurab; Brückner, Felix; Barber, Mark E.; Park, Joonbum; Kikugawa, Naoki; Sokolov, Dmitry A.; Bobowski, Jake S.; Miyoshi, Takuto; Maeno, Yoshiteru; Mackenzie, Andrew P.; Luetkens, Hubertus; Hicks, Clifford W.; Klauss, Hans-Henning.

In: Nature Physics, 04.03.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

Grinenko, V, Ghosh, S, Sarkar, R, Orain, J-C, Nikitin, A, Elender, M, Das, D, Guguchia, Z, Brückner, F, Barber, ME, Park, J, Kikugawa, N, Sokolov, DA, Bobowski, JS, Miyoshi, T, Maeno, Y, Mackenzie, AP, Luetkens, H, Hicks, CW & Klauss, H-H 2021, 'Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress', Nature Physics. https://doi.org/10.1038/s41567-021-01182-7

APA

Grinenko, V., Ghosh, S., Sarkar, R., Orain, J-C., Nikitin, A., Elender, M., Das, D., Guguchia, Z., Brückner, F., Barber, M. E., Park, J., Kikugawa, N., Sokolov, D. A., Bobowski, J. S., Miyoshi, T., Maeno, Y., Mackenzie, A. P., Luetkens, H., Hicks, C. W., & Klauss, H-H. (2021). Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress. Nature Physics. https://doi.org/10.1038/s41567-021-01182-7

Vancouver

Grinenko V, Ghosh S, Sarkar R, Orain J-C, Nikitin A, Elender M et al. Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress. Nature Physics. 2021 Mar 4. https://doi.org/10.1038/s41567-021-01182-7

Author

Grinenko, Vadim ; Ghosh, Shreenanda ; Sarkar, Rajib ; Orain, Jean-Christophe ; Nikitin, Artem ; Elender, Matthias ; Das, Debarchan ; Guguchia, Zurab ; Brückner, Felix ; Barber, Mark E. ; Park, Joonbum ; Kikugawa, Naoki ; Sokolov, Dmitry A. ; Bobowski, Jake S. ; Miyoshi, Takuto ; Maeno, Yoshiteru ; Mackenzie, Andrew P. ; Luetkens, Hubertus ; Hicks, Clifford W. ; Klauss, Hans-Henning. / Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress. In: Nature Physics. 2021.

Bibtex - Download

@article{08fa44282b4f4fae96b848bf8e493d5e,
title = "Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress",
abstract = "Strontium ruthenate (Sr2RuO4) continues to present an important test of our understanding of unconventional superconductivity, because while its normal-state electronic structure is known with precision, its superconductivity remains unexplained. There is evidence that its order parameter is chiral, but reconciling this with recent observations of the spin part of the pairing requires an order parameter that is either finely tuned or implies a new form of pairing. Therefore, a definitive resolution of whether the superconductivity of Sr2RuO4 is chiral is important for the study of superconductivity. Here we report the measurement of zero-field muon spin relaxation—a probe sensitive to weak magnetism—on samples under uniaxial stresses. We observe stress-induced splitting between the onset temperatures of superconductivity and time-reversal symmetry breaking—consistent with the qualitative expectations for a chiral order parameter—and argue that this observation cannot be explained by conventional magnetism. In addition, we report the appearance of bulk magnetic order under higher uniaxial stress, above the critical pressure at which a Lifshitz transition occurs in Sr2RuO4.",
keywords = "Materials science, Physics",
author = "Vadim Grinenko and Shreenanda Ghosh and Rajib Sarkar and Jean-Christophe Orain and Artem Nikitin and Matthias Elender and Debarchan Das and Zurab Guguchia and Felix Br{\"u}ckner and Barber, {Mark E.} and Joonbum Park and Naoki Kikugawa and Sokolov, {Dmitry A.} and Bobowski, {Jake S.} and Takuto Miyoshi and Yoshiteru Maeno and Mackenzie, {Andrew P.} and Hubertus Luetkens and Hicks, {Clifford W.} and Hans-Henning Klauss",
note = "This work has been financially supported by the Deutsche Forschungsgemeinschaft (GR 4667/1, GRK 1621 and SFB 1143 projects C02 and C09) and the Max Planck Society. Y.M., T.M. and J.S.B. acknowledge the financial support of JSPS Kakenhi (JP15H5852, JP15K21717 and JP17H06136) and the JSPS Core-to-Core Program. N.K. acknowledges the financial support from JSPS Kakenhi (no. JP18K04715) and JST-Mirai Program (no. JPMJMI18A3). A.N. acknowledges funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement no. 701647. ",
year = "2021",
month = mar,
day = "4",
doi = "10.1038/s41567-021-01182-7",
language = "English",
journal = "Nature Physics",
issn = "1745-2473",
publisher = "Nature publishing group",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress

AU - Grinenko, Vadim

AU - Ghosh, Shreenanda

AU - Sarkar, Rajib

AU - Orain, Jean-Christophe

AU - Nikitin, Artem

AU - Elender, Matthias

AU - Das, Debarchan

AU - Guguchia, Zurab

AU - Brückner, Felix

AU - Barber, Mark E.

AU - Park, Joonbum

AU - Kikugawa, Naoki

AU - Sokolov, Dmitry A.

AU - Bobowski, Jake S.

AU - Miyoshi, Takuto

AU - Maeno, Yoshiteru

AU - Mackenzie, Andrew P.

AU - Luetkens, Hubertus

AU - Hicks, Clifford W.

AU - Klauss, Hans-Henning

N1 - This work has been financially supported by the Deutsche Forschungsgemeinschaft (GR 4667/1, GRK 1621 and SFB 1143 projects C02 and C09) and the Max Planck Society. Y.M., T.M. and J.S.B. acknowledge the financial support of JSPS Kakenhi (JP15H5852, JP15K21717 and JP17H06136) and the JSPS Core-to-Core Program. N.K. acknowledges the financial support from JSPS Kakenhi (no. JP18K04715) and JST-Mirai Program (no. JPMJMI18A3). A.N. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement no. 701647.

PY - 2021/3/4

Y1 - 2021/3/4

N2 - Strontium ruthenate (Sr2RuO4) continues to present an important test of our understanding of unconventional superconductivity, because while its normal-state electronic structure is known with precision, its superconductivity remains unexplained. There is evidence that its order parameter is chiral, but reconciling this with recent observations of the spin part of the pairing requires an order parameter that is either finely tuned or implies a new form of pairing. Therefore, a definitive resolution of whether the superconductivity of Sr2RuO4 is chiral is important for the study of superconductivity. Here we report the measurement of zero-field muon spin relaxation—a probe sensitive to weak magnetism—on samples under uniaxial stresses. We observe stress-induced splitting between the onset temperatures of superconductivity and time-reversal symmetry breaking—consistent with the qualitative expectations for a chiral order parameter—and argue that this observation cannot be explained by conventional magnetism. In addition, we report the appearance of bulk magnetic order under higher uniaxial stress, above the critical pressure at which a Lifshitz transition occurs in Sr2RuO4.

AB - Strontium ruthenate (Sr2RuO4) continues to present an important test of our understanding of unconventional superconductivity, because while its normal-state electronic structure is known with precision, its superconductivity remains unexplained. There is evidence that its order parameter is chiral, but reconciling this with recent observations of the spin part of the pairing requires an order parameter that is either finely tuned or implies a new form of pairing. Therefore, a definitive resolution of whether the superconductivity of Sr2RuO4 is chiral is important for the study of superconductivity. Here we report the measurement of zero-field muon spin relaxation—a probe sensitive to weak magnetism—on samples under uniaxial stresses. We observe stress-induced splitting between the onset temperatures of superconductivity and time-reversal symmetry breaking—consistent with the qualitative expectations for a chiral order parameter—and argue that this observation cannot be explained by conventional magnetism. In addition, we report the appearance of bulk magnetic order under higher uniaxial stress, above the critical pressure at which a Lifshitz transition occurs in Sr2RuO4.

KW - Materials science

KW - Physics

U2 - 10.1038/s41567-021-01182-7

DO - 10.1038/s41567-021-01182-7

M3 - Article

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

ER -

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