Year: 2022
Type: article
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 YFeO3opens up the possibility of a large and technologically relevant class of materials, i.e., canted antiferromagnets, for long-distance spin transport.
Source: Nature Communications
Institutions: Johannes Gutenberg University Mainz, Centre National de la Recherche Scientifique, Université Paris-Saclay, Laboratoire Albert Fert, Shanghai University, Institut polytechnique de Grenoble, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Grenoble, Laboratoire National des Champs Magnétiques Intenses, Spintronique et Technologie des Composants, Université Grenoble Alpes, Norwegian University of Science and Technology
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,166
Funders: European Commission, Deutscher Akademischer Austauschdienst, Deutsche Forschungsgemeinschaft, National Natural Science Foundation of China, Science and Technology Commission of Shanghai Municipality, Johannes Gutenberg-Universität Mainz, King Abdullah University of Science and Technology, Norges Forskningsråd, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme
Awards: G1041306198, G184581589, G2095278010, G2165927803, G2348744074, Antiferromagntic spintronics, Novel Spin-Based Building Blocks for Advanced TeraHertz Applications, TRR 173: Spin+X: Der Spin in seiner kollektiven Umgebung, G2750074672, G3180218165, G3181011125, G3675288833, G4034572180, G4249442563, G434337789, G4601344203, G4671699161, G4962813667, G5813685313, G5911067133, Antiferromagnetischer Spintransport von Hematit zu Orthoferriten, Magnetische Austauschkopplung und elektrisches Schalten in multiferroischen BiFeO3/Doppelperowskit Heterostrukturen, 强耦合太赫兹磁极化子的激发及其超快光调控研究, G7575404189, G7593838944, G7627904275, G7651154174, TRR 288: Elastisches Tuning und elastische Reaktion elektronischer Quantenphasen der Materie (ELASTOQMAT), Topological Solitons in Antiferroics, 基于太赫兹光子-电子自旋强耦合效应实现对自旋 极化的动力学调控研究, G925760876
OpenAlex ID: W4200630477