Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3

Shubhankar Das, A. Ross, X X Ma, S. Becker, C Schmitt, F van Duijn, E F Galindez-Ruales, F Fuhrmann, M-A Syskaki, U Ebels, V Baltz, A-L Barra, H Y Chen, G. Jakob, S X Cao, J Sinova, Olena Gomonay, R. Lebrun, M Kläui

Research output: Contribution to journalArticlepeer-review

Abstract

In antiferromagnets, the efficient transport of spin-waves has until now only been observed in the insulating antiferromagnet hematite, where circularly (or a superposition of pairs of linearly) polarized spin-waves diffuse over long distances. Here, we report long-distance spin-transport in the antiferromagnetic orthoferrite YFeO3, where a different transport mechanism is enabled by the combined presence of the Dzyaloshinskii-Moriya interaction and externally applied fields. The magnon decay length is shown to exceed hundreds of nanometers, in line with resonance measurements that highlight the low magnetic damping. We observe a strong anisotropy in the magnon decay lengths that we can attribute to the role of the magnon group velocity in the transport of spin-waves in antiferromagnets. This unique mode of transport identified in YFeO3 opens up the possibility of a large and technologically relevant class of materials, i.e., canted antiferromagnets, for long-distance spin transport.
Original languageEnglish (US)
JournalNature communications
Volume13
Issue number1
DOIs
StatePublished - Oct 17 2022
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

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