Filtering magnetic relaxation mechanisms of YIG(001) thin films using ferromagnetic resonance

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dc.contributor.authorOliveira, A. B.
dc.contributor.authorRodriguez Suarez, R. L.
dc.contributor.authorCorrea, M. A.
dc.contributor.authorBohn, F.
dc.contributor.authorRaza, S. A.
dc.contributor.authorSommer, R. L.
dc.contributor.authorChesman, C.
dc.date.accessioned2024-01-10T13:13:06Z
dc.date.available2024-01-10T13:13:06Z
dc.date.issued2020
dc.description.abstractIn this work we used the ferromagnetic resonance (FMR) technique to measure the contributions for the magnetic relaxation in Y3Fe5O12 textured films deposited onto (001) Gd3Ga5O12 by magnetron sputtering. Through the numerical fitting of the angular dependence of the in-plane FMR linewidth measurements we identified the contribution of the Gilbert, two-magnon and mosaicity relaxation mechanisms. Regarding to the line broadening due to two-magnon mechanism, we interpreted it as a result of rectangular defects distributed over the film plane. The overall defects were decomposed into three crystallography direction chosen according to the in-plane FMR resonance field experimental results. We observed the two-magnon scattering rate being relevant for YIG thickness below 150 nm. Although it is also present for thicker samples, the Gilbert mechanism dominates with mosaicity being very important to corroborate the shape of the angular dependence, but with small amplitude. We point out the relevance of our finding regarding two-magnon scattering effect in YIG thin films, directly impacting in an overestimation of the spin pumping contribution to the FMR line broadening in YIG/ heavy-metal systems.
dc.description.funderBrazilian agency CNPq
dc.description.funderBrazilian agency CAPES
dc.description.funderBrazilian agency FAPERJ
dc.description.funderBrazilian agency FAPERN
dc.description.funderFondo Nacional de Desarrollo Cientifico y Tecnologico
dc.fechaingreso.objetodigital27-03-2024
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jmmm.2020.166851
dc.identifier.eissn1873-4766
dc.identifier.issn0304-8853
dc.identifier.urihttps://doi.org/10.1016/j.jmmm.2020.166851
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78267
dc.identifier.wosidWOS:000531564700002
dc.information.autorucFísica;Rodriguez Suarez Roberto;S/I;1005805
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherELSEVIER
dc.revistaJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
dc.rightsacceso restringido
dc.subjectEXTRINSIC CONTRIBUTIONS
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleFiltering magnetic relaxation mechanisms of YIG(001) thin films using ferromagnetic resonance
dc.typeartículo
dc.volumen507
sipa.codpersvinculados1005805
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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