Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions

Lade...
Vorschaubild
Dateien
Rongione_2-5ag1wet3qkx30.pdf
Rongione_2-5ag1wet3qkx30.pdfGröße: 1.43 MBDownloads: 49
Datum
2023
Autor:innen
Rongione, Enzo
Gueckstock, Oliver
Mattern, Maximilian
Gomonay, Olena
Meer, H.
Schmitt, Christian
Ramos, Rafael
Seifert, Tom S.
Lebrun, Romain
et al.
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Gold
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Nature Communications. Springer. 2023, 14(1), 1818. eISSN 2041-1723. Available under: doi: 10.1038/s41467-023-37509-6
Zusammenfassung

Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains a key challenge that is envisioned to be accomplished by spin-orbit torques or direct optical excitations. Here, we demonstrate the combined generation of broadband THz (incoherent) magnons and narrowband (coherent) magnons at 1 THz in low damping thin films of NiO/Pt. We evidence, experimentally and through modeling, two excitation processes of spin dynamics in NiO: an off-resonant instantaneous optical spin torque in (111) oriented films and a strain-wave-induced THz torque induced by ultrafast Pt excitation in (001) oriented films. Both phenomena lead to the emission of a THz signal through the inverse spin Hall effect in the adjacent heavy metal layer. We unravel the characteristic timescales of the two excitation processes found to be < 50 fs and > 300 fs, respectively, and thus open new routes towards the development of fast opto-spintronic devices based on antiferromagnetic materials.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690RONGIONE, Enzo, Oliver GUECKSTOCK, Maximilian MATTERN, Olena GOMONAY, H. MEER, Christian SCHMITT, Rafael RAMOS, Sebastian T. B. GOENNENWEIN, Tom S. SEIFERT, Romain LEBRUN, 2023. Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions. In: Nature Communications. Springer. 2023, 14(1), 1818. eISSN 2041-1723. Available under: doi: 10.1038/s41467-023-37509-6
BibTex
@article{Rongione2023-03-31Emiss-67113,
  year={2023},
  doi={10.1038/s41467-023-37509-6},
  title={Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions},
  number={1},
  volume={14},
  journal={Nature Communications},
  author={Rongione, Enzo and Gueckstock, Oliver and Mattern, Maximilian and Gomonay, Olena and Meer, H. and Schmitt, Christian and Ramos, Rafael and Goennenwein, Sebastian T. B. and Seifert, Tom S. and Lebrun, Romain},
  note={Article Number: 1818}
}
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/123456789/67113">
    <dc:creator>Seifert, Tom S.</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:title>Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions</dcterms:title>
    <dc:creator>Lebrun, Romain</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/67113/1/Rongione_2-5ag1wet3qkx30.pdf"/>
    <dc:contributor>Seifert, Tom S.</dc:contributor>
    <dc:creator>Goennenwein, Sebastian T. B.</dc:creator>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <dc:creator>Gueckstock, Oliver</dc:creator>
    <dc:contributor>Goennenwein, Sebastian T. B.</dc:contributor>
    <dc:language>eng</dc:language>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2023-06-14T12:42:31Z</dcterms:available>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/67113"/>
    <dc:contributor>Rongione, Enzo</dc:contributor>
    <dcterms:abstract>Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains a key challenge that is envisioned to be accomplished by spin-orbit torques or direct optical excitations. Here, we demonstrate the combined generation of broadband THz (incoherent) magnons and narrowband (coherent) magnons at 1 THz in low damping thin films of NiO/Pt. We evidence, experimentally and through modeling, two excitation processes of spin dynamics in NiO: an off-resonant instantaneous optical spin torque in (111) oriented films and a strain-wave-induced THz torque induced by ultrafast Pt excitation in (001) oriented films. Both phenomena lead to the emission of a THz signal through the inverse spin Hall effect in the adjacent heavy metal layer. We unravel the characteristic timescales of the two excitation processes found to be &lt; 50 fs and &gt; 300 fs, respectively, and thus open new routes towards the development of fast opto-spintronic devices based on antiferromagnetic materials.</dcterms:abstract>
    <dc:contributor>Mattern, Maximilian</dc:contributor>
    <dc:contributor>Meer, H.</dc:contributor>
    <dc:contributor>Schmitt, Christian</dc:contributor>
    <dc:creator>Schmitt, Christian</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2023-06-14T12:42:31Z</dc:date>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Meer, H.</dc:creator>
    <dcterms:issued>2023-03-31</dcterms:issued>
    <dc:creator>Mattern, Maximilian</dc:creator>
    <dc:creator>Ramos, Rafael</dc:creator>
    <dc:contributor>Gueckstock, Oliver</dc:contributor>
    <dc:creator>Rongione, Enzo</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Gomonay, Olena</dc:contributor>
    <dc:contributor>Lebrun, Romain</dc:contributor>
    <dc:contributor>Ramos, Rafael</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/67113/1/Rongione_2-5ag1wet3qkx30.pdf"/>
    <dc:creator>Gomonay, Olena</dc:creator>
    <dc:rights>Attribution 4.0 International</dc:rights>
  </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
Link zu Forschungsdaten
Beschreibung der Forschungsdaten
Datasets
Diese Publikation teilen