Laser-Induced Transient Magnons in Sr3Ir2O7 Throughout the Brillouin Zone
Strongly Correlated Electrons
2021-05-28 v3
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 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.
Cite
@article{arxiv.2002.07301,
title = {Laser-Induced Transient Magnons in Sr3Ir2O7 Throughout the Brillouin Zone},
author = {D. G. Mazzone and D. Meyers and Y. Cao and J. G. Vale and C. D. Dashwood and Y. Shi and A. J. A. James and N. J. Robinson and J. Q. Lin and V. Thampy and Y. Tanaka and A. S. Johnson and H. Miao and R. Wang and T. A. Assefa and J. Kim and D. Casa and R. Mankowsky and D. Zhu and R. Alonso-Mori and S. Song and H. Yavas and T. Katayama and M. Yabashi and Y. Kubota S. Owada and J. Liu and J. Yang and R. M. Konik and I. K. Robinson and J. P. Hill and D. F. McMorrow and M. Forst and S. Wall and X. Liu and M. P. M. Dean},
journal= {arXiv preprint arXiv:2002.07301},
year = {2021}
}
Comments
6 pages, 4 figures, not including supplemental material; accepted in PNAS