Magnetism in α-RuCl<sub>3 </sub>Under Pressure

ORAL

Abstract

Bond-dependent interactions between magnetic moments can lead to strong frustration and nontrivial ground states. In particular, the extended Kitaev model can host a spin liquid state or different frozen states depending on the strength of the additional Heisenberg interaction. In experiments, the relative interaction strengths in materials can be varied by applying pressure.

In this contribution I will present how the muon spin rotation technique can be used to study such materials and show examples of our recent high-pressure studies in Kitaev candidate materials based on iridium. I will then discuss the discovery of a new high-pressure phase in α-RuCl3 and possible scenarios that can be responsible for it.

Presenters

  • Gediminas Simutis

    • Paul Scherrer Institute

Authors

  • Gediminas Simutis

    • Paul Scherrer Institute
  • Alun Biffin

    • Paul Scherrer Institute
  • Rustem Khasanov

    • Paul Scherrer Institute
    • Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute
    • Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institute
  • Denis Cheptiakov

    • Paul Scherrer Institute
  • Karl Krämer

    • University of Bern
  • Anna Isaeva

    • TU Dresden
    • Technische Universität Dresden
  • Thomas Doert

    • TU Dresden
  • Hans-Henning Klauss

    • Institute of Solid State and Materials Physics, TU- Dresden
    • Institute of Solid State and Materials Physics, Technical University of Dresden
    • TU Dresden
  • Christian Rüegg

    • Paul Scherrer Institute
    • Paul Scherrer Institut
  • Alex Amato

    • Paul Scherrer Institute
    • Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute
  • Hubertus Luetkens

    • Paul Scherrer Institute
    • Paul Sherrer Institut
    • Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute