Nature Communications (Mar 2023)

Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions

  • E. Rongione,
  • O. Gueckstock,
  • M. Mattern,
  • O. Gomonay,
  • H. Meer,
  • C. Schmitt,
  • R. Ramos,
  • T. Kikkawa,
  • M. Mičica,
  • E. Saitoh,
  • J. Sinova,
  • H. Jaffrès,
  • J. Mangeney,
  • S. T. B. Goennenwein,
  • S. Geprägs,
  • T. Kampfrath,
  • M. Kläui,
  • M. Bargheer,
  • T. S. Seifert,
  • S. Dhillon,
  • R. Lebrun

DOI
https://doi.org/10.1038/s41467-023-37509-6
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 8

Abstract

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Antiferromagnets are promising candidates to build terahertz spintronic devices. However, manipulating and detecting their terahertz spin dynamics remains key challenges. Here, Rongione et al. demonstrate both broadband and narrowband terahertz emission from an antiferromagnet/heavy metal heterostructure using spin-phonon interactions.