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Authors: Boventer, Isabella
Simensen, Haakon T.
Anane, A.
Kläui, Mathias
Brataas, Arne
Lebrun, Romain
Title: Room-temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets
Online publication date: 20-Aug-2021
Year of first publication: 2021
Language: english
Abstract: We study theoretically and experimentally the spin pumping signals induced by the resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction and demonstrate that they can generate easily observable inverse spin-Hall voltages. Using a bilayer of hematite/heavy metal as a model system, we measure at room temperature the antiferromagnetic resonance and an associated inverse spin-Hall voltage, as large as in collinear antiferromagnets. As expected for coherent spin pumping, we observe that the sign of the inverse spin-Hall voltage provides direct information about the mode handedness as deduced by comparing hematite, chromium oxide and the ferrimagnet yttrium-iron garnet. Our results open new means to generate and detect spin currents at terahertz frequencies by functionalizing antiferromagnets with low damping and canted moments.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
Version: Accepted version
Publication type: Zeitschriftenaufsatz
Document type specification: Scientific article
License: In Copyright
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Journal: Physical review letters
Pages or article number: 187201
Publisher: American Physical Society
Publisher place: Ridge, NY
Issue date: 2021
ISSN: 0031-9007
Publisher URL:
Publisher DOI: 10.1103/PhysRevLett.126.187201
Appears in collections:JGU-Publikationen

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