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Propagation length of antiferrornagnetic magnons governed by domain configurations
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SYSNO ASEP 0541020 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Propagation length of antiferrornagnetic magnons governed by domain configurations Author(s) Ross, A. (DE)
Lebrun, R. (DE)
Gomonay, O. (DE)
Grave, D.A. (IL)
Kay, A. (IL)
Baldrati, L. (DE)
Becker, S. (DE)
Qaiumzadeh, A. (NO)
Ulloa, C. (NL)
Jakob, G. (DE)
Kronast, F. (DE)
Sinova, Jairo (FZU-D) RID, ORCID
Duine, R. (NO)
Brataas, A. (NO)
Rothschild, A. (IL)
Klaeui, M. (DE)Number of authors 16 Source Title Nano Letters. - : American Chemical Society - ISSN 1530-6984
Roč. 20, č. 1 (2020), s. 306-313Number of pages 8 s. Language eng - English Country US - United States Keywords antiferromagnets ; magnons ; magnetic domains ; XMLD-PEEM magnetic imaging ; spin transport ; magnon scattering Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000507151600040 EID SCOPUS 85077180999 DOI 10.1021/acs.nanolett.9b03837 Annotation The compensated magnetic order and characteristic terahertz frequencies of antiferromagnetic materials make them promising candidates to develop a new class of robust, ultrafast spintronic devices. The manipulation of antiferromagnetic spin-waves in thin films is anticipated to lead to new exotic phenomena such as spin-superfluidity, requiring an efficient propagation of spin-waves in thin films. However, the reported decay length in thin films has so far been limited to a few nanometers. In this work, we achieve efficient spin-wave propagation over micrometer distances in thin films of the insulating antiferromagnet hematite with large magnetic domains while evidencing much shorter attenuation lengths in multidomain thin films. Through transport and magnetic imaging, we determine the role of the magnetic domain structure and spin-wave scattering at domain walls to govern the transport. We manipulate the spin transport by tailoring the domain configuration through field cycle training. For the appropriate crystalline orientation, zero-field spin transport is achieved across micrometers, as required for device integration. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1021/acs.nanolett.9b03837
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