Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy

Kurzanzeige
dc.contributor.authorSeifert, Tom S.
dc.contributor.authorJaiswal, Samridh
dc.contributor.authorBarker, Joseph
dc.contributor.authorWeber, Sebastian T.
dc.contributor.authorRazdolski, Ilya
dc.contributor.authorCramer, Joel
dc.contributor.authorGoennenwein, Sebastian T. B.
dc.contributor.authorWolf, Martin
dc.contributor.authorKläui, Mathias
dc.contributor.authorKampfrath, Tobias
dc.date.accessioned2021-01-05T10:54:53Z
dc.date.available2021-01-05T10:54:53Z
dc.date.issued2018eng
dc.description.abstractUnderstanding the transfer of spin angular momentum is essential in modern magnetism research. A model case is the generation of magnons in magnetic insulators by heating an adjacent metal film. Here, we reveal the initial steps of this spin Seebeck effect with <27 fs time resolution using terahertz spectroscopy on bilayers of ferrimagnetic yttrium iron garnet and platinum. Upon exciting the metal with an infrared laser pulse, a spin Seebeck current js arises on the same ~100 fs time scale on which the metal electrons thermalize. This observation highlights that efficient spin transfer critically relies on carrier multiplication and is driven by conduction electrons scattering off the metal-insulator interface. Analytical modeling shows that the electrons' dynamics are almost instantaneously imprinted onto js because their spins have a correlation time of only ~4 fs and deflect the ferrimagnetic moments without inertia. Applications in material characterization, interface probing, spin-noise spectroscopy and terahertz spin pumping emerge.eng
dc.description.versionpublishedeng
dc.identifier.doi10.1038/s41467-018-05135-2eng
dc.identifier.pmid30042421eng
dc.identifier.ppn1743906358
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/52288
dc.language.isoengeng
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.ddc530eng
dc.titleFemtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopyeng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
kops.citation.bibtex
@article{Seifert2018Femto-52288,
  year={2018},
  doi={10.1038/s41467-018-05135-2},
  title={Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy},
  volume={9},
  journal={Nature Communications},
  author={Seifert, Tom S. and Jaiswal, Samridh and Barker, Joseph and Weber, Sebastian T. and Razdolski, Ilya and Cramer, Joel and Goennenwein, Sebastian T. B. and Wolf, Martin and Kläui, Mathias and Kampfrath, Tobias},
  note={Article Number: 2899}
}
kops.citation.iso690SEIFERT, Tom S., Samridh JAISWAL, Joseph BARKER, Sebastian T. WEBER, Ilya RAZDOLSKI, Joel CRAMER, Sebastian T. B. GOENNENWEIN, Martin WOLF, Mathias KLÄUI, Tobias KAMPFRATH, 2018. Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy. In: Nature Communications. Nature Publishing Group. 2018, 9, 2899. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-05135-2deu
kops.citation.iso690SEIFERT, Tom S., Samridh JAISWAL, Joseph BARKER, Sebastian T. WEBER, Ilya RAZDOLSKI, Joel CRAMER, Sebastian T. B. GOENNENWEIN, Martin WOLF, Mathias KLÄUI, Tobias KAMPFRATH, 2018. Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy. In: Nature Communications. Nature Publishing Group. 2018, 9, 2899. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-05135-2eng
kops.citation.rdf
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52288">
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/52288"/>
    <dc:language>eng</dc:language>
    <dc:creator>Wolf, Martin</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Razdolski, Ilya</dc:creator>
    <dc:creator>Jaiswal, Samridh</dc:creator>
    <dc:contributor>Goennenwein, Sebastian T. B.</dc:contributor>
    <dcterms:title>Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy</dcterms:title>
    <dc:creator>Goennenwein, Sebastian T. B.</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-01-05T10:54:53Z</dc:date>
    <dc:creator>Barker, Joseph</dc:creator>
    <dcterms:abstract xml:lang="eng">Understanding the transfer of spin angular momentum is essential in modern magnetism research. A model case is the generation of magnons in magnetic insulators by heating an adjacent metal film. Here, we reveal the initial steps of this spin Seebeck effect with &lt;27 fs time resolution using terahertz spectroscopy on bilayers of ferrimagnetic yttrium iron garnet and platinum. Upon exciting the metal with an infrared laser pulse, a spin Seebeck current js arises on the same ~100 fs time scale on which the metal electrons thermalize. This observation highlights that efficient spin transfer critically relies on carrier multiplication and is driven by conduction electrons scattering off the metal-insulator interface. Analytical modeling shows that the electrons' dynamics are almost instantaneously imprinted onto js because their spins have a correlation time of only ~4 fs and deflect the ferrimagnetic moments without inertia. Applications in material characterization, interface probing, spin-noise spectroscopy and terahertz spin pumping emerge.</dcterms:abstract>
    <dc:contributor>Seifert, Tom S.</dc:contributor>
    <dc:contributor>Cramer, Joel</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-01-05T10:54:53Z</dcterms:available>
    <dc:creator>Seifert, Tom S.</dc:creator>
    <dc:contributor>Jaiswal, Samridh</dc:contributor>
    <dc:creator>Cramer, Joel</dc:creator>
    <dc:contributor>Barker, Joseph</dc:contributor>
    <dc:contributor>Razdolski, Ilya</dc:contributor>
    <dc:contributor>Wolf, Martin</dc:contributor>
    <dc:creator>Weber, Sebastian T.</dc:creator>
    <dc:contributor>Kläui, Mathias</dc:contributor>
    <dc:contributor>Weber, Sebastian T.</dc:contributor>
    <dc:creator>Kampfrath, Tobias</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/52288/3/Seifert_2-kvj233w89lmq0.pdf"/>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <dc:creator>Kläui, Mathias</dc:creator>
    <dc:contributor>Kampfrath, Tobias</dc:contributor>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/52288/3/Seifert_2-kvj233w89lmq0.pdf"/>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:issued>2018</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
  </rdf:Description>
</rdf:RDF>
kops.description.openAccessopenaccessgoldeng
kops.flag.etalAuthortrueeng
kops.flag.isPeerReviewedtrueeng
kops.flag.knbibliographyfalse
kops.identifier.nbnurn:nbn:de:bsz:352-2-kvj233w89lmq0
kops.sourcefieldNature Communications. Nature Publishing Group. 2018, <b>9</b>, 2899. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-05135-2deu
kops.sourcefield.plainNature Communications. Nature Publishing Group. 2018, 9, 2899. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-05135-2deu
kops.sourcefield.plainNature Communications. Nature Publishing Group. 2018, 9, 2899. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-05135-2eng
relation.isAuthorOfPublication5f95d919-0336-47a4-9574-cc1393d8fd45
relation.isAuthorOfPublication4019fc7d-5806-482f-85c2-f71711d5355b
relation.isAuthorOfPublication18b3e959-352c-4f64-925f-5d67b201bacc
relation.isAuthorOfPublication.latestForDiscovery5f95d919-0336-47a4-9574-cc1393d8fd45
source.bibliographicInfo.articleNumber2899eng
source.bibliographicInfo.volume9eng
source.identifier.eissn2041-1723eng
source.periodicalTitleNature Communicationseng
source.publisherNature Publishing Groupeng

Dateien

Originalbündel

Gerade angezeigt 1 - 1 von 1
Vorschaubild nicht verfügbar
Name:
Seifert_2-kvj233w89lmq0.pdf
Größe:
1.04 MB
Format:
Adobe Portable Document Format
Beschreibung:
Seifert_2-kvj233w89lmq0.pdf
Seifert_2-kvj233w89lmq0.pdfGröße: 1.04 MBDownloads: 308

Lizenzbündel

Gerade angezeigt 1 - 1 von 1
Vorschaubild nicht verfügbar
Name:
license.txt
Größe:
3.96 KB
Format:
Item-specific license agreed upon to submission
Beschreibung:
license.txt
license.txtGröße: 3.96 KBDownloads: 0

Sammlungen

Physik: Publikationen