Origin of the spin Seebeck effect in compensated ferrimagnets

Lade...
Vorschaubild
Dateien
Gepraegs_2--qu14yxv4m6at8.pdf
Gepraegs_2--qu14yxv4m6at8.pdfGröße: 783.58 KBDownloads: 446
Datum
2016
Autor:innen
Geprägs, Stephan
Kehlberger, Andreas
Coletta, Francesco Della
Qiu, Zhiyong
Guo, Er-Jia
Schulz, Tomek
Mix, Christian
Meyer, Sibylle
et al.
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Nature Communications. 2016, 7, 10452. eISSN 2041-1723. Available under: doi: 10.1038/ncomms10452
Zusammenfassung

Magnons are the elementary excitations of a magnetically ordered system. In ferromagnets, only a single band of low-energy magnons needs to be considered, but in ferrimagnets the situation is more complex owing to different magnetic sublattices involved. In this case, low lying optical modes exist that can affect the dynamical response. Here we show that the spin Seebeck effect (SSE) is sensitive to the complexities of the magnon spectrum. The SSE is caused by thermally excited spin dynamics that are converted to a voltage by the inverse spin Hall effect at the interface to a heavy metal contact. By investigating the temperature dependence of the SSE in the ferrimagnet gadolinium iron garnet, with a magnetic compensation point near room temperature, we demonstrate that higher-energy exchange magnons play a key role in the SSE.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690GEPRÄGS, Stephan, Andreas KEHLBERGER, Francesco Della COLETTA, Zhiyong QIU, Er-Jia GUO, Tomek SCHULZ, Christian MIX, Sibylle MEYER, Akashdeep KAMRA, Mathias KLÄUI, 2016. Origin of the spin Seebeck effect in compensated ferrimagnets. In: Nature Communications. 2016, 7, 10452. eISSN 2041-1723. Available under: doi: 10.1038/ncomms10452
BibTex
@article{Geprags2016Origi-40412,
  year={2016},
  doi={10.1038/ncomms10452},
  title={Origin of the spin Seebeck effect in compensated ferrimagnets},
  volume={7},
  journal={Nature Communications},
  author={Geprägs, Stephan and Kehlberger, Andreas and Coletta, Francesco Della and Qiu, Zhiyong and Guo, Er-Jia and Schulz, Tomek and Mix, Christian and Meyer, Sibylle and Kamra, Akashdeep and Kläui, Mathias},
  note={Article Number: 10452}
}
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/123456789/40412">
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/40412/1/Gepraegs_2--qu14yxv4m6at8.pdf"/>
    <dc:contributor>Guo, Er-Jia</dc:contributor>
    <dc:contributor>Kläui, Mathias</dc:contributor>
    <dc:creator>Kehlberger, Andreas</dc:creator>
    <dc:contributor>Mix, Christian</dc:contributor>
    <dc:creator>Guo, Er-Jia</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-25T09:57:42Z</dcterms:available>
    <dc:creator>Mix, Christian</dc:creator>
    <dcterms:issued>2016</dcterms:issued>
    <dc:creator>Qiu, Zhiyong</dc:creator>
    <dc:contributor>Schulz, Tomek</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-25T09:57:42Z</dc:date>
    <dc:contributor>Meyer, Sibylle</dc:contributor>
    <dc:creator>Kläui, Mathias</dc:creator>
    <dcterms:title>Origin of the spin Seebeck effect in compensated ferrimagnets</dcterms:title>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/40412"/>
    <dc:contributor>Kehlberger, Andreas</dc:contributor>
    <dc:creator>Schulz, Tomek</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:abstract xml:lang="eng">Magnons are the elementary excitations of a magnetically ordered system. In ferromagnets, only a single band of low-energy magnons needs to be considered, but in ferrimagnets the situation is more complex owing to different magnetic sublattices involved. In this case, low lying optical modes exist that can affect the dynamical response. Here we show that the spin Seebeck effect (SSE) is sensitive to the complexities of the magnon spectrum. The SSE is caused by thermally excited spin dynamics that are converted to a voltage by the inverse spin Hall effect at the interface to a heavy metal contact. By investigating the temperature dependence of the SSE in the ferrimagnet gadolinium iron garnet, with a magnetic compensation point near room temperature, we demonstrate that higher-energy exchange magnons play a key role in the SSE.</dcterms:abstract>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Coletta, Francesco Della</dc:creator>
    <dc:contributor>Geprägs, Stephan</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dc:contributor>Qiu, Zhiyong</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/40412/1/Gepraegs_2--qu14yxv4m6at8.pdf"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Kamra, Akashdeep</dc:contributor>
    <dc:creator>Geprägs, Stephan</dc:creator>
    <dc:creator>Kamra, Akashdeep</dc:creator>
    <dc:contributor>Coletta, Francesco Della</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:creator>Meyer, Sibylle</dc:creator>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen