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Publication Detail
Laser-induced transient magnons in Sr3Ir2O7 throughout the Brillouin zone.
  • Publication Type:
    Journal article
  • Publication Sub Type:
  • Authors:
    Mazzone DG, Meyers D, Cao Y, Vale JG, Dashwood CD, Shi Y, James AJA, Robinson NJ, Lin J, Thampy V, Tanaka Y, Johnson AS, Miao H, Wang R, Assefa TA, Kim J, Casa D, Mankowsky R, Zhu D, Alonso-Mori R, Song S, Yavas H, Katayama T, Yabashi M, Kubota Y, Owada S, Liu J, Yang J, Konik RM, Robinson IK, Hill JP, McMorrow DF, Först M, Wall S, Liu X, Dean MPM
  • Publisher:
    National Academy of Sciences
  • Publication date:
  • Journal:
    Proceedings of the National Academy of Sciences of USA
  • Volume:
  • Issue:
  • Status:
  • Country:
    United States
  • Print ISSN:
  • PII:
  • Language:
  • Keywords:
    iridates, time-resolved resonant X-ray scattering, transient magnetic excitations
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 we demonstrate that femtosecond laser pulses can excite transient magnons at large wavevectors in gapped antiferromagnets and that they persist for several picoseconds, which is opposite to what is observed in nearly gapless magnets. Our work suggests that materials with isotropic magnetic interactions are preferred to achieve rapid manipulation of magnetism.
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