Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3

Shubhankar Das, A. Ross, X. X. Ma, S. Becker, C. Schmitt, F. 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, O. Gomonay, R. Lebrun and M. Kläui ()
Additional contact information
Shubhankar Das: Johannes Gutenberg University Mainz
A. Ross: Thales, Université Paris-Saclay
X. X. Ma: Shanghai University
S. Becker: Johannes Gutenberg University Mainz
C. Schmitt: Johannes Gutenberg University Mainz
F. Duijn: CNRS, CEA, Grenoble INP, SPINTEC
E. F. Galindez-Ruales: Johannes Gutenberg University Mainz
F. Fuhrmann: Johannes Gutenberg University Mainz
M.-A. Syskaki: Johannes Gutenberg University Mainz
U. Ebels: CNRS, CEA, Grenoble INP, SPINTEC
V. Baltz: CNRS, CEA, Grenoble INP, SPINTEC
A.-L. Barra: CNRS-UGA-UPS-INSA-EMFL
H. Y. Chen: Shanghai University
G. Jakob: Johannes Gutenberg University Mainz
S. X. Cao: Shanghai University
J. Sinova: Johannes Gutenberg University Mainz
O. Gomonay: Johannes Gutenberg University Mainz
R. Lebrun: Thales, Université Paris-Saclay
M. Kläui: Johannes Gutenberg University Mainz

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: 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.

Date: 2022
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DOI: 10.1038/s41467-022-33520-5

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