Quantifying the orbital-to-spin moment ratio under dynamic excitation

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dc.contributor.authorEmori, Satoruen
dc.contributor.authorMaizel, Rachel E.en
dc.contributor.authorStreet, Galen T.en
dc.contributor.authorJones, Julia L.en
dc.contributor.authorArena, Dario A.en
dc.contributor.authorShafer, Padraicen
dc.contributor.authorKlewe, Christophen
dc.date.accessioned2025-01-03T13:39:25Zen
dc.date.available2025-01-03T13:39:25Zen
dc.date.issued2024-03-18en
dc.description.abstractThe orbital component of magnetization dynamics, e.g., excited by ferromagnetic resonance (FMR), may generate “orbitronic” effects in nanomagnetic devices. Yet, distinguishing orbital dynamics from spin dynamics remains a challenge. Here, we employ x-ray magnetic circular dichroism (XMCD) to quantify the ratio between the orbital and spin components of FMR-induced dynamics in a Ni80Fe20 film. By applying the XMCD sum rules at the Ni L 3 , 2 edges, we obtain an orbital-to-spin ratio of 0.108 ± 0.005 for the dynamic magnetization. This value is consistent with 0.102 ± 0.008 for the static magnetization, probed with the same x-ray beam configuration as the dynamic XMCD experiment. The demonstrated method presents a possible path to disentangle orbitronic effects from their spintronic counterparts in magnetic media.en
dc.description.versionPublished versionen
dc.format.extent6 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 122404 (Article number)en
dc.identifier.doihttps://doi.org/10.1063/5.0198326en
dc.identifier.eissn1077-3118en
dc.identifier.issn0003-6951en
dc.identifier.issue12en
dc.identifier.urihttps://hdl.handle.net/10919/123887en
dc.identifier.volume124en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.rightsPublic Domain (U.S.)en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.titleQuantifying the orbital-to-spin moment ratio under dynamic excitationen
dc.title.serialApplied Physics Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-groupVirginia Techen
pubs.organisational-groupVirginia Tech/Scienceen
pubs.organisational-groupVirginia Tech/Science/Physicsen
pubs.organisational-groupVirginia Tech/All T&R Facultyen
pubs.organisational-groupVirginia Tech/Science/COS T&R Facultyen

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