Laser-Induced Transient Magnons in Sr<sub>3</sub>Ir<sub>2</sub>O<sub>7</sub> Throughout the Brillouin Zone

ORAL

Abstract

Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding of how magnetic correlations evolve on ultrafast timescales. Using ultrafast resonant inelastic x-ray scattering [1-3] we demonstrate that femtosecond laser pulses can excite transient magnons at large wavevectors in the gapped antiferromagnet Sr3Ir2O7, and that they persist for several picoseconds which is opposite to what is observed in the nearly gapless magnet Sr2IrO4 [1]. Our work suggests that materials with isotropic magnetic interactions are preferred to achieve rapid manipulation of magnetism.

[1] M. P. M. Dean,et al., Nature Materials 15, 601 (2016).
[2] M. Mitrano.et al., Science Advances 5, eaax3346 (2019).
[3] S. Parchenko, et al., Phys. Rev. Research 2, 023110 (2020)

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Presenters

  • Daniel Mazzone

    • Brookhaven National Laboratory

Authors

  • Daniel Mazzone

    • Brookhaven National Laboratory

  • Derek J Meyers

    • Brookhaven National Laboratory

  • Yue Cao

    • Brookhaven National Laboratory

  • James. G. Vale

    • London Centre for Nanotechnology and Department of Physics and Astronomy, University College London

  • Cameron Dashwood

    • London Centre for Nanotechnology and Department of Physics and Astronomy, University College London

  • Youguo Shi

    • Chinese Academy of Sciences

  • Andrew J. A. James

    • The Open University
    • Physics, Open University

  • Neil J Robinson

    • University of Amsterdam

  • Jiaqi Lin

    • Brookhaven National Laboratory
    • ShanghaiTech University

  • Vivek Thampy

    • SLAC National Accelerator Laboratory

  • Yoshikazu Tanaka

    • RIKEN SPring-8 Center

  • Allan Johnson

    • ICFO
    • The Barcelona Institute of Science and Technology

  • Hu Miao

    • Oak Ridge National Laboratory, USA
    • Brookhaven National Laboratory
    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Laboratory

  • Ruitang Wang

    • ShanghaiTech University

  • Tadesse Assefa

    • Brookhaven National Laboratory

  • Jung Ho Kim

    • Argonne National Laboratory

  • Diego M Casa

    • Argonne National Lab
    • Argonne National Laboratory

  • Roman Mankowsky

    • Max Planck Institute for the Structure and Dynamics of Matter

  • Diling Zhu

    • SLAC National Accelerator Laboratory

  • Roberto Alonso-Mor

    • SLAC National Accelerator Laboratory

  • Sanghoon Song

    • SLAC National Accelerator Laboratory

  • Hasan Yavas

    • Petra III, DESY
    • SLAC National Accelerator Laboratory

  • Tetsuo Katayama

    • Japan Synchrotron Radiation Research Institute

  • Makina Yabashi

    • RIKEN SPring-8 Center

  • Yuya Kubota

    • RIKEN SPring-8 Center
    • Japan Synchrotron Radiation Research Institute