Ultrafast terahertz spin dynamics : from phonon-induced spin order to coherent magnon control

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2013
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Beitrag zu einem Konferenzband
Publikationsstatus
Published
Erschienen in
BETZ, Markus, ed. and others. Ultrafast phenomena and nanophotonics XVII : 3 - 6 February 2013, San Francisco, California, United States ; [part of SPIE photonics west]. Bellingham: SPIE, 2013, 862307. Proceedings of SPIE. 8623. ISSN 0277-786X. ISBN 978-0-8194-9392-7. Available under: doi: 10.1117/12.2001236
Zusammenfassung

Ultrashort pulses in the terahertz (THz) spectral range allow us to study and control spin dynamics on time scales faster than a single oscillation cycle of light. In a first set of experiments, we harness an optically triggered coherent lattice vibration to induce a transient spin-density wave in BaFe2As2, the parent compound of pnictide superconductors. The time-dependent multi-THz response of the non-equilibrium phases shows that the ordering quasi-adiabatically follows a coherent lattice oscillation at a frequency as high as 5.5 THz. The results suggest important implications for unconventional superconductivity. In a second step, we utilize the magnetic field component of intense THz transients to directly switch on and off coherent spin waves in the antiferromagnetic nickel oxide NiO. A femtosecond optical probe traces the magnetic dynamics in the time domain and verifies that the THz field addresses spins selectively via Zeeman interaction. This concept provides a universal ultrafast handle on magnetic excitations in the electronic ground state.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
2013 Ultrafast phenomena and nanophotonics, 3. Feb. 2013 - 6. Feb. 2013, San Francisco, California, USA
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690KIM, Kyung Wan, Michael PORER, Christian BERNHARD, Jure DEMSAR, Alexej PASHKIN, Tobias KAMPFRATH, Alexander SELL, Martin WOLF, Alfred LEITENSTORFER, Rupert HUBER, 2013. Ultrafast terahertz spin dynamics : from phonon-induced spin order to coherent magnon control. 2013 Ultrafast phenomena and nanophotonics. San Francisco, California, USA, 3. Feb. 2013 - 6. Feb. 2013. In: BETZ, Markus, ed. and others. Ultrafast phenomena and nanophotonics XVII : 3 - 6 February 2013, San Francisco, California, United States ; [part of SPIE photonics west]. Bellingham: SPIE, 2013, 862307. Proceedings of SPIE. 8623. ISSN 0277-786X. ISBN 978-0-8194-9392-7. Available under: doi: 10.1117/12.2001236
BibTex
@inproceedings{Kim2013-02-21Ultra-43341,
  year={2013},
  doi={10.1117/12.2001236},
  title={Ultrafast terahertz spin dynamics : from phonon-induced spin order to coherent magnon control},
  number={8623},
  isbn={978-0-8194-9392-7},
  issn={0277-786X},
  publisher={SPIE},
  address={Bellingham},
  series={Proceedings of SPIE},
  booktitle={Ultrafast phenomena and nanophotonics XVII : 3 - 6 February 2013, San Francisco, California, United States ; [part of SPIE photonics west]},
  editor={Betz, Markus},
  author={Kim, Kyung Wan and Porer, Michael and Bernhard, Christian and Demsar, Jure and Pashkin, Alexej and Kampfrath, Tobias and Sell, Alexander and Wolf, Martin and Leitenstorfer, Alfred and Huber, Rupert},
  note={Article Number: 862307}
}
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/123456789/43341">
    <dcterms:title>Ultrafast terahertz spin dynamics : from phonon-induced spin order to coherent magnon control</dcterms:title>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Demsar, Jure</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-20T13:14:06Z</dcterms:available>
    <dc:creator>Kampfrath, Tobias</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Pashkin, Alexej</dc:creator>
    <dc:creator>Wolf, Martin</dc:creator>
    <dc:contributor>Porer, Michael</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/43341"/>
    <dc:contributor>Pashkin, Alexej</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:contributor>Kim, Kyung Wan</dc:contributor>
    <dc:contributor>Kampfrath, Tobias</dc:contributor>
    <dc:contributor>Wolf, Martin</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Huber, Rupert</dc:creator>
    <dc:contributor>Bernhard, Christian</dc:contributor>
    <dc:contributor>Sell, Alexander</dc:contributor>
    <dc:contributor>Leitenstorfer, Alfred</dc:contributor>
    <dc:creator>Leitenstorfer, Alfred</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-20T13:14:06Z</dc:date>
    <dc:creator>Bernhard, Christian</dc:creator>
    <dc:creator>Sell, Alexander</dc:creator>
    <dcterms:abstract xml:lang="eng">Ultrashort pulses in the terahertz (THz) spectral range allow us to study and control spin dynamics on time scales faster than a single oscillation cycle of light. In a first set of experiments, we harness an optically triggered coherent lattice vibration to induce a transient spin-density wave in BaFe2As2, the parent compound of pnictide superconductors. The time-dependent multi-THz response of the non-equilibrium phases shows that the ordering quasi-adiabatically follows a coherent lattice oscillation at a frequency as high as 5.5 THz. The results suggest important implications for unconventional superconductivity. In a second step, we utilize the magnetic field component of intense THz transients to directly switch on and off coherent spin waves in the antiferromagnetic nickel oxide NiO. A femtosecond optical probe traces the magnetic dynamics in the time domain and verifies that the THz field addresses spins selectively via Zeeman interaction. This concept provides a universal ultrafast handle on magnetic excitations in the electronic ground state.</dcterms:abstract>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:issued>2013-02-21</dcterms:issued>
    <dc:contributor>Huber, Rupert</dc:contributor>
    <dc:creator>Porer, Michael</dc:creator>
    <dc:creator>Demsar, Jure</dc:creator>
    <dc:creator>Kim, Kyung Wan</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