Ultrafast Amplification and Nonlinear Magnetoelastic Coupling of Coherent Magnon Modes in an Antiferromagnet

Bossini, Davide; Pancaldi, Matteo; Soumah, Lucile; Basini, Martina; Mertens, Fabian; Cinchetti, Mirko; Satoh, Takuya; Gomonay, Olena; Bonetti, Stefano

Ultrafast Amplification and Nonlinear Magnetoelastic Coupling of Coherent Magnon Modes in an Antiferromagnet

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2021

Autor:innen

Bossini, Davide

Pancaldi, Matteo

Soumah, Lucile

Basini, Martina

Mertens, Fabian

Cinchetti, Mirko

Satoh, Takuya

Gomonay, Olena

Bonetti, Stefano

DOI (zitierfähiger Link)

https://doi.org/10.1103/PhysRevLett.127.077202

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. American Physical Society (APS). 2021, 127(7), 077202. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.127.077202

Zusammenfassung

We investigate the role of domain walls in the ultrafast magnon dynamics of an antiferromagnetic NiO single crystal in a pump-probe experiment with variable pump photon energy. Analyzing the amplitude of the energy-dependent photoinduced ultrafast spin dynamics, we detect a yet unreported coupling between the material’s characteristic terahertz- and gigahertz-magnon modes. We explain this unexpected coupling between two orthogonal eigenstates of the corresponding Hamiltonian by modeling the magnetoelastic interaction between spins in different domains. We find that such interaction, in the nonlinear regime, couples the two different magnon modes via the domain walls and it can be optically exploited via the exciton-magnon resonance.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

BOSSINI, Davide, Matteo PANCALDI, Lucile SOUMAH, Martina BASINI, Fabian MERTENS, Mirko CINCHETTI, Takuya SATOH, Olena GOMONAY, Stefano BONETTI, 2021. Ultrafast Amplification and Nonlinear Magnetoelastic Coupling of Coherent Magnon Modes in an Antiferromagnet. In: Physical Review Letters. American Physical Society (APS). 2021, 127(7), 077202. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.127.077202

BibTex

@article{Bossini2021Ultra-54543,
  year={2021},
  doi={10.1103/PhysRevLett.127.077202},
  title={Ultrafast Amplification and Nonlinear Magnetoelastic Coupling of Coherent Magnon Modes in an Antiferromagnet},
  number={7},
  volume={127},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Bossini, Davide and Pancaldi, Matteo and Soumah, Lucile and Basini, Martina and Mertens, Fabian and Cinchetti, Mirko and Satoh, Takuya and Gomonay, Olena and Bonetti, Stefano},
  note={Article Number: 077202}
}

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/123456789/54543">
    <dc:contributor>Pancaldi, Matteo</dc:contributor>
    <dcterms:issued>2021</dcterms:issued>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Gomonay, Olena</dc:contributor>
    <dc:contributor>Bonetti, Stefano</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:creator>Satoh, Takuya</dc:creator>
    <dc:contributor>Bossini, Davide</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dc:creator>Bonetti, Stefano</dc:creator>
    <dcterms:title>Ultrafast Amplification and Nonlinear Magnetoelastic Coupling of Coherent Magnon Modes in an Antiferromagnet</dcterms:title>
    <dc:creator>Gomonay, Olena</dc:creator>
    <dc:contributor>Mertens, Fabian</dc:contributor>
    <dc:contributor>Cinchetti, Mirko</dc:contributor>
    <dc:contributor>Soumah, Lucile</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-08-11T07:54:57Z</dcterms:available>
    <dc:contributor>Satoh, Takuya</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/54543"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Basini, Martina</dc:creator>
    <dc:creator>Bossini, Davide</dc:creator>
    <dcterms:abstract xml:lang="eng">We investigate the role of domain walls in the ultrafast magnon dynamics of an antiferromagnetic NiO single crystal in a pump-probe experiment with variable pump photon energy. Analyzing the amplitude of the energy-dependent photoinduced ultrafast spin dynamics, we detect a yet unreported coupling between the material’s characteristic terahertz- and gigahertz-magnon modes. We explain this unexpected coupling between two orthogonal eigenstates of the corresponding Hamiltonian by modeling the magnetoelastic interaction between spins in different domains. We find that such interaction, in the nonlinear regime, couples the two different magnon modes via the domain walls and it can be optically exploited via the exciton-magnon resonance.</dcterms:abstract>
    <dc:creator>Pancaldi, Matteo</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Basini, Martina</dc:contributor>
    <dc:creator>Cinchetti, Mirko</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-08-11T07:54:57Z</dc:date>
    <dc:creator>Mertens, Fabian</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Soumah, Lucile</dc:creator>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja

Begutachtet

Ja