Observing high-k magnons with Mie-resonance-enhanced Brillouin light scattering

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dc.contributor.authorWojewoda, Ondřejcs
dc.contributor.authorLigmajer, Filipcs
dc.contributor.authorHrtoň, Martincs
dc.contributor.authorKlíma, Jancs
dc.contributor.authorDhankhar, Meenacs
dc.contributor.authorDavídková, Kristýnacs
dc.contributor.authorStaňo, Michalcs
dc.contributor.authorHolobrádek, Jakubcs
dc.contributor.authorKrčma, Jakubcs
dc.contributor.authorZlámal, Jakubcs
dc.contributor.authorŠikola, Tomášcs
dc.contributor.authorUrbánek, Michalcs
dc.coverage.issue1cs
dc.coverage.volume6cs
dc.date.issued2023-05-09cs
dc.description.abstractIt is of fundamental interest to probe dynamics excitations such as magnons with nanoscale wavelengths in matter. Here, the authors experimentally observe magnons with high k-vectors using Brillouin light scattering microscopy with the use of dielectric nanoresonators, which opens the way for the future nanoscale magnonics research and probing materials with high-momentum photons. Local probing of dynamic excitations such as magnons and phonons in materials and nanostructures can bring new insights into their properties and functionalities. For example, in magnonics, many concepts and devices recently demonstrated at the macro- and microscale now need to be realized at the nanoscale. Brillouin light scattering (BLS) spectroscopy and microscopy has become a standard technique for spin wave characterization, and enabled many pioneering magnonic experiments. However, the conventional BLS cannot detect nanoscale waves due to its fundamental limit in maximum detectable quasiparticle momentum. Here we show that optically induced Mie resonances in nanoparticles can be used to extend the range of accessible quasiparticle's wavevectors beyond the BLS fundamental limit. These experiments involve the measurement of thermally excited as well as coherently excited high momentum magnons. Our findings demonstrate the capability of Mie-enhanced BLS and significantly extend the usability of BLS microscopy for magnonic and phononic research.en
dc.formattextcs
dc.format.extent1-10cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCOMMUNICATIONS PHYSICS. 2023, vol. 6, issue 1, p. 1-10.en
dc.identifier.doi10.1038/s42005-023-01214-zcs
dc.identifier.issn2399-3650cs
dc.identifier.orcid0000-0002-4276-520Xcs
dc.identifier.orcid0000-0003-0346-4110cs
dc.identifier.orcid0000-0002-3264-4025cs
dc.identifier.orcid0000-0002-1858-0926cs
dc.identifier.orcid0000-0002-7440-7191cs
dc.identifier.orcid0000-0003-4632-2067cs
dc.identifier.orcid0000-0003-0689-0211cs
dc.identifier.orcid0000-0003-4217-2276cs
dc.identifier.orcid0000-0003-0072-2073cs
dc.identifier.other183980cs
dc.identifier.researcheridJ-3881-2014cs
dc.identifier.researcheridV-8613-2018cs
dc.identifier.researcheridD-8051-2012cs
dc.identifier.researcheridM-7120-2019cs
dc.identifier.urihttp://hdl.handle.net/11012/213683
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofCOMMUNICATIONS PHYSICScs
dc.relation.urihttps://www.nature.com/articles/s42005-023-01214-zcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2399-3650/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectspin-wavesen
dc.subjectsurfaceen
dc.subjectfilmsen
dc.titleObserving high-k magnons with Mie-resonance-enhanced Brillouin light scatteringen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183980en
sync.item.dbtypeVAVen
sync.item.insts2024.01.03 16:01:35en
sync.item.modts2024.01.02 20:22:12en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Nanomagnetismus a spintronikacs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
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Nanomagnetismus a spintronika
Příprava a charakterizace nanostruktur
Sdílená laboratoř RP1
Ústav fyzikálního inženýrství