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Author (up) Owerre, S.A.; Mellado, P.; Baskaran, G. doi  openurl
  Title Photoinduced Floquet topological magnons in Kitaev magnets Type Journal Article
  Year 2019 Publication Epl Abbreviated Journal Epl  
  Volume 126 Issue 2 Pages 7 pp  
  Keywords  
  Abstract We study periodically driven pure Kitaev model and ferromagnetic phase of the Kitaev-Heisenberg model on the honeycomb lattice by off-resonant linearly and circularly polarized lights at zero magnetic field. Using a combination of linear spin wave and Floquet theories, we show that the effective time-independent Hamiltonians in the off-resonant regime map onto the corresponding anisotropic static spin model, plus a tunable photoinduced magnetic field along the [111] direction, which precipitates Floquet topological magnons and chiral magnon edge modes. They are tunable by the light amplitude and polarization. Similarly, we show that the thermal Hall effect induced by the Berry curvature of the Floquet topological magnons can also be tuned by the laser field. Our results pave the way for ultrafast manipulation of topological magnons in irradiated Kitaev magnets, and could play a pivotal role in the investigation of ultrafast magnon spin current generation in Kitaev materials. Copyright (C) EPLA, 2019  
  Address [Owerre, S. A.; Mellado, Paula; Baskaran, G.] Perimeter Inst Theoret Phys, 31 Caroline St N, Waterloo, ON N2L 2Y5, Canada, Email: sowerre@perimeterinstitute.ca  
  Corporate Author Thesis  
  Publisher Iop Publishing Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0295-5075 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000469803300001 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 1032  
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