Transient Spin Density Wave Order Induced in the Normal State of BaFe2As2 by Coherent Lattice Oscillations

Lade...
Vorschaubild
Dateien
Kim_2-1mk23or0lgm332.pdf
Kim_2-1mk23or0lgm332.pdfGröße: 718.72 KBDownloads: 155
Datum
2013
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
European Union (EU): 290876
Projekt
Ultrafast Quantum Physics in Amplitude and Phase - UltraPhase, ERC Advanced Grant
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Beitrag zu einem Konferenzband
Publikationsstatus
Published
Erschienen in
CHERGUI, Majed, ed. and others. XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012. Les Ulis: EDP Sciences, 2013, 03012. EPJ Web of Conferences. 41. eISSN 2100-014X. ISBN 978-2-7598-0956-1. Available under: doi: 10.1051/epjconf/20134103012
Zusammenfassung

We trace the ultrafast dynamics of the spin density wave gap of the pnictide system BaFe2As2 probing resonantly with broadband multi-terahertz pulses. The photoexcitation in the low-temperature ground state leads to a fast suppression of the spin order followed by a slower recovery process. Surprisingly, in the normal state, we observe periodic oscillations of the spin density wave feature at a frequency as high as 5.5 THz. Our results indicate a transient development of a macroscopic order driven by a coherent lattice oscillation and attest to a pronounced spin–phonon coupling in pnictides.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
XVIIIth International Conference on Ultrafast Phenomena, 8. Juli 2012 - 13. Juli 2012, Lausanne
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690KIM, Kyungwan, Alexej PASHKIN, Hanjo SCHÄFER, Markus BEYER, Michael PORER, Thomas WOLF, Christian BERNHARD, Jure DEMSAR, Rupert HUBER, Alfred LEITENSTORFER, 2013. Transient Spin Density Wave Order Induced in the Normal State of BaFe2As2 by Coherent Lattice Oscillations. XVIIIth International Conference on Ultrafast Phenomena. Lausanne, 8. Juli 2012 - 13. Juli 2012. In: CHERGUI, Majed, ed. and others. XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012. Les Ulis: EDP Sciences, 2013, 03012. EPJ Web of Conferences. 41. eISSN 2100-014X. ISBN 978-2-7598-0956-1. Available under: doi: 10.1051/epjconf/20134103012
BibTex
@inproceedings{Kim2013-03-13Trans-41858,
  year={2013},
  doi={10.1051/epjconf/20134103012},
  title={Transient Spin Density Wave Order Induced in the Normal State of BaFe<sub>2</sub>As<sub>2</sub> by Coherent Lattice Oscillations},
  number={41},
  isbn={978-2-7598-0956-1},
  publisher={EDP Sciences},
  address={Les Ulis},
  series={EPJ Web of Conferences},
  booktitle={XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012},
  editor={Chergui, Majed},
  author={Kim, Kyungwan and Pashkin, Alexej and Schäfer, Hanjo and Beyer, Markus and Porer, Michael and Wolf, Thomas and Bernhard, Christian and Demsar, Jure and Huber, Rupert and Leitenstorfer, Alfred},
  note={Article Number: 03012}
}
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/123456789/41858">
    <dc:creator>Kim, Kyungwan</dc:creator>
    <dc:creator>Wolf, Thomas</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/41858/1/Kim_2-1mk23or0lgm332.pdf"/>
    <dc:contributor>Beyer, Markus</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/41858"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Demsar, Jure</dc:contributor>
    <dc:creator>Porer, Michael</dc:creator>
    <dc:contributor>Porer, Michael</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Pashkin, Alexej</dc:creator>
    <dc:creator>Bernhard, Christian</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-03-20T14:55:48Z</dcterms:available>
    <dc:contributor>Bernhard, Christian</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:creator>Schäfer, Hanjo</dc:creator>
    <dc:contributor>Pashkin, Alexej</dc:contributor>
    <dcterms:title>Transient Spin Density Wave Order Induced in the Normal State of BaFe&lt;sub&gt;2&lt;/sub&gt;As&lt;sub&gt;2&lt;/sub&gt; by Coherent Lattice Oscillations</dcterms:title>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Wolf, Thomas</dc:contributor>
    <dc:contributor>Leitenstorfer, Alfred</dc:contributor>
    <dc:creator>Huber, Rupert</dc:creator>
    <dc:creator>Demsar, Jure</dc:creator>
    <dc:contributor>Huber, Rupert</dc:contributor>
    <dc:contributor>Schäfer, Hanjo</dc:contributor>
    <dc:creator>Leitenstorfer, Alfred</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/41858/1/Kim_2-1mk23or0lgm332.pdf"/>
    <dc:contributor>Kim, Kyungwan</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-03-20T14:55:48Z</dc:date>
    <dcterms:abstract xml:lang="eng">We trace the ultrafast dynamics of the spin density wave gap of the pnictide system BaFe2As2 probing resonantly with broadband multi-terahertz pulses. The photoexcitation in the low-temperature ground state leads to a fast suppression of the spin order followed by a slower recovery process. Surprisingly, in the normal state, we observe periodic oscillations of the spin density wave feature at a frequency as high as 5.5 THz. Our results indicate a transient development of a macroscopic order driven by a coherent lattice oscillation and attest to a pronounced spin–phonon coupling in pnictides.</dcterms:abstract>
    <dc:creator>Beyer, Markus</dc:creator>
    <dc:rights>terms-of-use</dc:rights>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:issued>2013-03-13</dcterms:issued>
  </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