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Authors: Ross, Andrew
Lebrun, Romain
Gomonay, Olena
Grave, Daniel A.
Kay, Asaf
Baldrati, Lorenzo
Becker, Sven
Qaiumzadeh, Alireza
Ulloa, Camilo
Jakob, Gerhard
Kronast, Florian
Sinova, Jairo
Duine, Rembert
Brataas, Arne
Rothschild, Avner
Kläui, Mathias
Title: Propagation length of antiferromagnetic magnons governed by domain configurations
Online publication date: 12-Feb-2020
Year of first publication: 2020
Language: english
Abstract: 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.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
URN: urn:nbn:de:hebis:77-publ-595520
Version: Accepted version
Publication type: Zeitschriftenaufsatz
License: In Copyright
Information on rights of use:
Journal: Nano letters
Pages or article number: 306
Publisher: ACS Publ.
Publisher place: Washington, DC
Issue date: 2020
ISSN: 1530-6992
Publisher URL:
Publisher DOI: 10.1021/acs.nanolett.9b03837
Appears in collections:JGU-Publikationen

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