Superconducting penetration depth measurement and zero field muon spin relaxation experiments on Sr<sub>2</sub>RuO<sub>4 </sub>under uniaxial strain

ORAL

Abstract

To probe its superconducting order parameter, we have performed muon spin relaxation (muSR) measurements on samples of Sr2RuO4 placed under uniaxial stress. Previous studies on unstressed Sr2RuO4 have revealed enhanced relaxation in the superconducting state, which is interpreted as evidence for a chiral px ± ipy order parameter. With this order parameter, uniaxial stress is expected to induce a splitting between Tc and the onset of chirality. muSR requires large samples, so to perform these measurements, we have developed piezoelectric-based apparatus capable of applying forces of up to ~ 500 N.

*We are grateful to the Deutsche Forschungsgemeinschaft through grants GRK 1621 and SFB 1143, GR 4667 and to the Max Planck Society.

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Presenters

  • Shreenanda Ghosh

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden

Authors

  • Shreenanda Ghosh

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden

  • Vadim Grinenko

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden

  • Rajib Sarkar

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden

  • Felix Brückner

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden

  • Jean-Christophe Orain

    • muSR group, Paul Scherrer Institute, 5232 Villigen, Switzerland
    • Paul Scherrer Institute, Villigen, Switzerland
    • Paul Sherrer Institut

  • Hubertus Luetkens

    • Paul Scherrer Institute, Villigen, Switzerland
    • Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute
    • Paul Scherrer Institut

  • Nikitin Artem

    • Paul Scherrer Institute, Villigen, Switzerland

  • Matthias Elender

    • Paul Scherrer Institute, Villigen, Switzerland

  • Joonbum Park

    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany

  • Mark E Barber

    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
    • Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Naoki Kikugawa

    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
    • National Institute for Material Science, Tsukuba, Ibaraki
    • National Institute for Materials Science, Tsukuba
    • National Institute for Materials Science
    • Quantum Transport Properties Group, National Institute for Materials Science (NIMS), Tsukuba 305-0003, Japan
    • National Institute for Material Science

  • Dmitry Sokolov

    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
    • Max-Planck-Institut for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids

  • Andrew Mackenzie

    • Max-Planck-Institute for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids, Dresden,Germany
    • Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
    • Max-Planck-Institut for Chemical Physics of Solids
    • Physics of Quantum Materials, Max Planck Institute of Chemical Physics of Solids

  • Clifford Hicks

    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
    • Max-Planck-Institut for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Yoshiteru Maeno

    • Department of Physics, Kyoto University
    • Dept. of Physics, Kyoto University
    • Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Japan
    • Kyoto University
    • Department of Physics, Graduate School of Science, Kyoto University
    • Department of Physics, Kyoto University, Kyoto 606-8502, Japan
    • Department of Physics, Kyoto University, Japan

  • Hans-Henning Klauss

    • Institut für Festkörper- und Materialphysik, Technische Universität Dresden