Absence of detectable spin and orbital pumping from Ni to Nb by out-of-plane ferromagnetic resonance

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dc.contributor.authorBakare, Omolara A.en
dc.contributor.authorStreet, Galen T.en
dc.contributor.authorAbdizadeh, Sachlien
dc.contributor.authorMaizel, Rachel E.en
dc.contributor.authorKlewe, Christophen
dc.contributor.authorEmori, Satoruen
dc.date.accessioned2026-02-16T14:27:22Zen
dc.date.available2026-02-16T14:27:22Zen
dc.date.issued2026-02-02en
dc.description.abstractExcited ferromagnets can pump spin angular momentum, along with possibly orbital angular momentum. Among elemental ferromagnets, Ni has been proposed to exhibit substantial orbital pumping relative to spin pumping. Here, we search for a signature of orbital pumping by Ni, specifically by comparing out-of-plane ferromagnetic resonance in heterostructures without Ni (FeV/Nb) and with Ni (FeV-Ni/Nb). The FeV/Nb series shows a clear increase in Gilbert damping with the Nb sink thickness, attributed to spin pumping from FeV to Nb. Surprisingly, the FeV-Ni/Nb series exhibits no such damping increase, revealing no significant spin or orbital pumping from Ni to Nb. Our results offer a fresh perspective on angular-momentum transfer in Ni/Nb heterostructures.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier052404 (Article number)en
dc.identifier.doihttps://doi.org/10.1063/5.0301792en
dc.identifier.eissn1077-3118en
dc.identifier.issn0003-6951en
dc.identifier.issue5en
dc.identifier.urihttps://hdl.handle.net/10919/141267en
dc.identifier.volume128en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleAbsence of detectable spin and orbital pumping from Ni to Nb by out-of-plane ferromagnetic resonanceen
dc.title.serialApplied Physics Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
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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