Nature Communications (Oct 2018)

Spin transfer torque driven higher-order propagating spin waves in nano-contact magnetic tunnel junctions

  • A. Houshang,
  • R. Khymyn,
  • H. Fulara,
  • A. Gangwar,
  • M. Haidar,
  • S. R. Etesami,
  • R. Ferreira,
  • P. P. Freitas,
  • M. Dvornik,
  • R. K. Dumas,
  • J. Åkerman

DOI
https://doi.org/10.1038/s41467-018-06589-0
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 6

Abstract

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Nano-contact-based spin wave generation may enable high-frequency magnonic devices but has been limited to long wavelengths and weak signal strengths. Here the authors demonstrate high-order short-wavelength propagating spin waves with increased transmission rates and propagation lengths in magnetic tunnel junction stacks.