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Fluctuation stablised spin-density-wave order and the phase diagram of Sr<sub>3</sub>Ru<sub>2</sub>O<sub>7</sub>

ORAL

Abstract

Sr2Ru3O7 is a unique metal in which a magnetic field of about 8 Tesla can induce spin density wave (SDW) order [1]. There are two SDW ordered phases (A and B) with different incommensurate wavevectors. Here we use magnetic neutron diffraction to characterise the magnetic order as a function of magnetic field strength and direction. The order is observed for all field directions investigated. Our results suggest that the SDW is closely linked to Fermi surface nesting and is probably stabilised by magnetic fluctuations. Thus the SDW order explains many (magnetic, transport and thermal) anomalies in this material.
[1] C. Lester et al., Nature materials 14, 373 (2015)

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Presenters

  • Stephen Hayden

    H. H. Wills Physics Laboratory, University of Bristol, Univ of Bristol, University of Bristol, UK

Authors

  • Stephen Hayden

    H. H. Wills Physics Laboratory, University of Bristol, Univ of Bristol, University of Bristol, UK

  • Richard Waite

    University of Bristol, UK

  • Chris Lester

    University of Bristol, UK

  • Robin Perry

    University College London, UK

  • Silvia Ramos

    University of Kent, UK

  • Dmitry Khalyavin

    ISIS Facility, Rutherford Appleton Laboratory-STFC, ISIS facility, Rutherford Appleton Laboratory, ISIS, Rutherford Appleton Laboratory, ISIS, Rutherford Appleton Laboratory, UK

  • Fabio Orlandi

    ISIS, Rutherford Appleton Laboratory, UK

  • Pascal Manuel

    ISIS Facility, Rutherford Appleton Laboratory-STFC, ISIS Neutron Source, ISIS, STFC RAL, ISIS facility, Rutherford Appleton Laboratory, ISIS, Rutherford Appleton Laboratory, ISIS, Rutherford Appleton Laboratory, UK