Exceptional sign changes of the nonlocal spin Seebeck effect in antiferromagnetic hematite

Lade...
Vorschaubild
Dateien
Ross_2-stfxc0jowwqe5.pdf
Ross_2-stfxc0jowwqe5.pdfGröße: 2.27 MBDownloads: 162
Datum
2021
Autor:innen
Ross, Andrew
Lebrun, Romain
Deák, András
Szunyogh, László
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
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
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Physical Review B. American Physical Society (APS). 2021, 103(22), 224433. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.103.224433
Zusammenfassung

Low-power spintronic devices based on the propagation of pure magnonic spin currents in antiferromagnetic insulator materials offer several distinct advantages over ferromagnetic components including higher-frequency magnons and a stability against disturbing external magnetic fields. In this work, we make use of the insulating antiferromagnetic phase of iron oxide, the mineral hematite α−Fe2O3 to investigate the long-distance transport of thermally generated magnonic spin currents. We report on the excitation of magnons generated by the spin Seebeck effect, transported both parallel and perpendicular to the antiferromagnetic easy-axis under an applied magnetic field. Making use of an atomistic hematite toy model, we calculate the transport characteristics from the deviation of the antiferromagnetic ordering from equilibrium under an applied field. We resolve the role of the magnetic order parameters in the transport, and experimentally we find significant thermal spin transport without the need for a net magnetization.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690ROSS, Andrew, Romain LEBRUN, Martin EVERS, András DEÁK, László SZUNYOGH, Ulrich NOWAK, Mathias KLÄUI, 2021. Exceptional sign changes of the nonlocal spin Seebeck effect in antiferromagnetic hematite. In: Physical Review B. American Physical Society (APS). 2021, 103(22), 224433. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.103.224433
BibTex
@article{Ross2021Excep-54525,
  year={2021},
  doi={10.1103/PhysRevB.103.224433},
  title={Exceptional sign changes of the nonlocal spin Seebeck effect in antiferromagnetic hematite},
  number={22},
  volume={103},
  issn={2469-9950},
  journal={Physical Review B},
  author={Ross, Andrew and Lebrun, Romain and Evers, Martin and Deák, András and Szunyogh, László and Nowak, Ulrich and Kläui, Mathias},
  note={Article Number: 224433}
}
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/123456789/54525">
    <dc:creator>Ross, Andrew</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-08-10T09:03:04Z</dc:date>
    <dc:creator>Nowak, Ulrich</dc:creator>
    <dc:creator>Szunyogh, László</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Lebrun, Romain</dc:creator>
    <dc:language>eng</dc:language>
    <dc:contributor>Nowak, Ulrich</dc:contributor>
    <dc:contributor>Ross, Andrew</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Kläui, Mathias</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54525/1/Ross_2-stfxc0jowwqe5.pdf"/>
    <dc:creator>Deák, András</dc:creator>
    <dc:rights>terms-of-use</dc:rights>
    <dc:contributor>Szunyogh, László</dc:contributor>
    <dc:contributor>Evers, Martin</dc:contributor>
    <dcterms:issued>2021</dcterms:issued>
    <dc:contributor>Deák, András</dc:contributor>
    <dc:creator>Evers, Martin</dc:creator>
    <dc:contributor>Lebrun, Romain</dc:contributor>
    <dcterms:title>Exceptional sign changes of the nonlocal spin Seebeck effect in antiferromagnetic hematite</dcterms:title>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54525/1/Ross_2-stfxc0jowwqe5.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:abstract xml:lang="eng">Low-power spintronic devices based on the propagation of pure magnonic spin currents in antiferromagnetic insulator materials offer several distinct advantages over ferromagnetic components including higher-frequency magnons and a stability against disturbing external magnetic fields. In this work, we make use of the insulating antiferromagnetic phase of iron oxide, the mineral hematite α−Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; to investigate the long-distance transport of thermally generated magnonic spin currents. We report on the excitation of magnons generated by the spin Seebeck effect, transported both parallel and perpendicular to the antiferromagnetic easy-axis under an applied magnetic field. Making use of an atomistic hematite toy model, we calculate the transport characteristics from the deviation of the antiferromagnetic ordering from equilibrium under an applied field. We resolve the role of the magnetic order parameters in the transport, and experimentally we find significant thermal spin transport without the need for a net magnetization.</dcterms:abstract>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-08-10T09:03:04Z</dcterms:available>
    <dc:contributor>Kläui, Mathias</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/54525"/>
  </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
Ja
Diese Publikation teilen