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Monopole density and antiferromagnetic domains in spin-ice iridates

ORAL

Abstract

We investigate the behaviour of rare earth pyrochlore iridates Dy2Ir2O7 and Ho2Ir2O7 using dipolar Monte Carlo simulations for the rare earth moments and an effective representation of the Ir moments as local fields [Lefrancois et al, Nat. Comm. 2017]. We study in particular how the magnetisation and defect population respond to externally applied magnetic fields along different crystal directions. We uncover an intriguing interplay between the rare earth moments and the correlations in the underlying Ir moments, and we comment on their possible relevance to experimental results.

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Presenters

  • Claudio Castelnovo

    Univ of Cambridge, TCM, University of Cambridge, University of Cambridge, T.C.M. Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom

Authors

  • Claudio Castelnovo

    Univ of Cambridge, TCM, University of Cambridge, University of Cambridge, T.C.M. Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom

  • Attila Szabo

    Univ of Cambridge

  • Matthew Pearce

    Department of Physics, University of Warwick, Physics, University of Warwick, University of Warwick

  • Kathrin Goetze

    Department of Physics, University of Warwick, Univ of Warwick, Physics, University of Warwick, University of Warwick

  • Tycho Sikkenk

    Physics, Utrecht University, University of Utrecht

  • Martin Lees

    Physics, University of Warwick, University of Warwick, Department of Physics, The University of Warwick, Coventry, CV4 7AL, United Kingdom

  • Andrew Boothroyd

    University of Oxford

  • Prabhakaran Dharmalingam

    University of Oxford

  • Paul Goddard

    Department of Physics, University of Warwick, University of Warwick, Physics, University of Warwick