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Magnetisation and monopole density response to applied magnetic fields in rare earth pyrochlore 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, University of Cambridge, TCM, University of Cambridge, Theory of Condensed Matter group, Cavendish Laboratory, University of Cambridge

Authors

  • Attila Szabo

    Univ of Cambridge, TCM, University of Cambridge

  • Tycho Sikkenk

    Univ of Cambridge, Department of Physics, Utrecht University

  • Claudio Castelnovo

    Univ of Cambridge, University of Cambridge, TCM, University of Cambridge, Theory of Condensed Matter group, Cavendish Laboratory, University of Cambridge

  • Matthew Pearce

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

  • Kathrin Goetze

    HLD (HZDR) / TU Dresden, Physics, Warwick University, Physics, University of Warwick, University of Warwick, Department of Physics, University of Warwick, Physics Department, University of Warwick, Coventry, CV4 7AL, United Kingdom

  • Martin Lees

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

  • Dharmalingam Prabhakaran

    University of Oxford, Department of Physics, University of Oxford

  • Andrew T Boothroyd

    University of Oxford, Department of Physics, University of Oxford

  • Paul Goddard

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