Publikation:

Terahertz spin dynamics driven by a field-derivative torque

Lade...
Vorschaubild

Dateien

Mondal_2-td5ntzhiqs1a5.pdf
Mondal_2-td5ntzhiqs1a5.pdfGröße: 604.01 KBDownloads: 373

Datum

2019

Autor:innen

Oppeneer, Peter M.
Nowak, Ulrich

Herausgeber:innen

Kontakt

ISSN der Zeitschrift

Electronic ISSN

ISBN

Bibliografische Daten

Verlag

Schriftenreihe

Auflagebezeichnung

ArXiv-ID

Internationale Patentnummer

Angaben zur Forschungsförderung

Projekt

Open Access-Veröffentlichung
Open Access Green
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Physical Review B. 2019, 100(6), 060409. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.100.060409

Zusammenfassung

Efficient manipulation of magnetization at ultrashort timescales is of particular interest for future technology. Here, we numerically investigate the influence of the so-called field-derivative torque, which was derived earlier based on relativistic Dirac theory [R. Mondal et al., Phys. Rev. B 94, 144419 (2016)], on the spin dynamics triggered by ultrashort laser pulses. We find that only considering the THz Zeeman field can underestimate the spin excitation in antiferromagnetic oxide systems such as, e.g., NiO and CoO. However, accounting for both the THz Zeeman torque and the field-derivative torque, the amplitude of the spin excitation increases significantly. Studying the damping dependence of the field-derivative torque we observe larger effects for materials having larger damping constants.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690MONDAL, Ritwik, Andreas DONGES, Ulrike RITZMANN, Peter M. OPPENEER, Ulrich NOWAK, 2019. Terahertz spin dynamics driven by a field-derivative torque. In: Physical Review B. 2019, 100(6), 060409. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.100.060409
BibTex
@article{Mondal2019-08-23Terah-47002,
  year={2019},
  doi={10.1103/PhysRevB.100.060409},
  title={Terahertz spin dynamics driven by a field-derivative torque},
  number={6},
  volume={100},
  issn={2469-9950},
  journal={Physical Review B},
  author={Mondal, Ritwik and Donges, Andreas and Ritzmann, Ulrike and Oppeneer, Peter M. and Nowak, Ulrich},
  note={Article Number: 060409}
}
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/123456789/47002">
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-09-20T09:45:28Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Ritzmann, Ulrike</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-09-20T09:45:28Z</dcterms:available>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:creator>Donges, Andreas</dc:creator>
    <dcterms:abstract xml:lang="eng">Efficient manipulation of magnetization at ultrashort timescales is of particular interest for future technology. Here, we numerically investigate the influence of the so-called field-derivative torque, which was derived earlier based on relativistic Dirac theory [R. Mondal et al., Phys. Rev. B 94, 144419 (2016)], on the spin dynamics triggered by ultrashort laser pulses. We find that only considering the THz Zeeman field can underestimate the spin excitation in antiferromagnetic oxide systems such as, e.g., NiO and CoO. However, accounting for both the THz Zeeman torque and the field-derivative torque, the amplitude of the spin excitation increases significantly. Studying the damping dependence of the field-derivative torque we observe larger effects for materials having larger damping constants.</dcterms:abstract>
    <dc:creator>Nowak, Ulrich</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/47002/1/Mondal_2-td5ntzhiqs1a5.pdf"/>
    <dc:creator>Ritzmann, Ulrike</dc:creator>
    <dc:contributor>Donges, Andreas</dc:contributor>
    <dcterms:issued>2019-08-23</dcterms:issued>
    <dc:contributor>Oppeneer, Peter M.</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:creator>Mondal, Ritwik</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/47002"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:title>Terahertz spin dynamics driven by a field-derivative torque</dcterms:title>
    <dc:contributor>Nowak, Ulrich</dc:contributor>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/47002/1/Mondal_2-td5ntzhiqs1a5.pdf"/>
    <dc:creator>Oppeneer, Peter M.</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Mondal, Ritwik</dc:contributor>
  </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