Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3

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

Type

Article

KAUST Grant Number

OSR-2019-CRG8-4048.2

Date

2022-10-17

Permanent link to this record

http://hdl.handle.net/10754/685138

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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.

Citation

Das, S., Ross, A., Ma, X. X., Becker, S., Schmitt, C., van Duijn, F., Galindez-Ruales, E. F., Fuhrmann, F., Syskaki, M.-A., Ebels, U., Baltz, V., Barra, A.-L., Chen, H. Y., Jakob, G., Cao, S. X., Sinova, J., Gomonay, O., Lebrun, R., & Kläui, M. (2022). Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3. Nature Communications, 13(1). https://doi.org/10.1038/s41467-022-33520-5

Sponsors

S.D. thanks Mr. T. Reimer of Johannes Gutenberg University Mainz for his help in fabricating the devices. This work was supported by the Max Planck Graduate Center with the Johannes Gutenberg-Universität Mainz (MPGC). The authors in Mainz acknowledge support from the DFG project number 423441604. R.L. and M.K. acknowledge financial support from the Horizon 2020 Framework Programme of the European Commission under FET-Open grant agreement no. 863155 (s-Nebula). All authors from Mainz also acknowledge support from both MaHoJeRo (DAAD Spintronics network, project number 57334897 and 57524834), SPIN + X (DFG SFB TRR 173 No. 268565370, projects A01, A03, A11, B02, and B12), and KAUST (OSR-2019-CRG8-4048.2). M.K. acknowledges support by the Research Council of Norway through its Centers of Excellence funding scheme, project number 262633 “QuSpin” and the Horizon Europe Framework Programme of the European Commission under grant agreement no. 1010702P7 (SWAN-om-chip). O.G. and J.S. additionally acknowledge support from the ERC Synergy Grant SC2 (No. 610115), EU FET Open RIA Grant no. 766566, and funding from Deutsche Forschungsgemeinschaft (DFG) via” TRR 288 – 422213477 (Projects No. A09). J.S. additionally acknowledges TopDyn JGU Grant. S.B acknowledges the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—project number 358671374. S.X.C. acknowledges support by the Science and Technology Commission of Shanghai Municipality (No.21JC1402600), and the National Natural Science Foundation of China (NSFC, No. 12074242). R.L. acknowledges financial support from the Horizon 2020 Framework Programme of the European Commission under FET-Open grant agreement No. 964931 (TSAR).