Direct observation of magnetic metastability in individual iron nanoparticles

Lade...
Vorschaubild
Dateien
Balan_279163.pdf
Balan_279163.pdfGröße: 936.25 KBDownloads: 346
Datum
2014
Autor:innen
Balan, Ana
Derlet, Peter M.
Rodríguez, Arantxa Fraile
Bansmann, Joachim
Kleibert, Armin
Nolting, Frithjof
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
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Physical Review Letters. 2014, 112(10). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.112.107201
Zusammenfassung

X-ray photoemission electron microscopy combined with x-ray magnetic circular dichroism is used to study the magnetic properties of individual iron nanoparticles with sizes ranging from 20 down to 8 nm. While the magnetocrystalline anisotropy of bulk iron suggests superparamagnetic behavior in this size range, ferromagnetically blocked particles are also found at all sizes. Spontaneous transitions from the blocked state to the superparamagnetic state are observed in single particles and suggest that the enhanced magnetic energy barriers in the ferromagnetic particles are due to metastable, structurally excited states with unexpected life times.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690BALAN, Ana, Peter M. DERLET, Arantxa Fraile RODRÍGUEZ, Joachim BANSMANN, Rocio YANES DÍAZ, Ulrich NOWAK, Armin KLEIBERT, Frithjof NOLTING, 2014. Direct observation of magnetic metastability in individual iron nanoparticles. In: Physical Review Letters. 2014, 112(10). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.112.107201
BibTex
@article{Balan2014Direc-27916,
  year={2014},
  doi={10.1103/PhysRevLett.112.107201},
  title={Direct observation of magnetic metastability in individual iron nanoparticles},
  number={10},
  volume={112},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Balan, Ana and Derlet, Peter M. and Rodríguez, Arantxa Fraile and Bansmann, Joachim and Yanes Díaz, Rocio and Nowak, Ulrich and Kleibert, Armin and Nolting, Frithjof}
}
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/123456789/27916">
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/27916/2/Balan_279163.pdf"/>
    <dc:creator>Derlet, Peter M.</dc:creator>
    <dc:creator>Rodríguez, Arantxa Fraile</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/27916/2/Balan_279163.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Derlet, Peter M.</dc:contributor>
    <dcterms:abstract xml:lang="eng">X-ray photoemission electron microscopy combined with x-ray magnetic circular dichroism is used to study the magnetic properties of individual iron nanoparticles with sizes ranging from 20 down to 8 nm. While the magnetocrystalline anisotropy of bulk iron suggests superparamagnetic behavior in this size range, ferromagnetically blocked particles are also found at all sizes. Spontaneous transitions from the blocked state to the superparamagnetic state are observed in single particles and suggest that the enhanced magnetic energy barriers in the ferromagnetic particles are due to metastable, structurally excited states with unexpected life times.</dcterms:abstract>
    <dc:contributor>Rodríguez, Arantxa Fraile</dc:contributor>
    <dc:contributor>Bansmann, Joachim</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-05-23T11:53:32Z</dc:date>
    <dc:contributor>Kleibert, Armin</dc:contributor>
    <dc:contributor>Nolting, Frithjof</dc:contributor>
    <dc:creator>Balan, Ana</dc:creator>
    <dc:contributor>Yanes Díaz, Rocio</dc:contributor>
    <dc:creator>Kleibert, Armin</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:bibliographicCitation>Physical review letters ; 112 (2014), 10. - 107201</dcterms:bibliographicCitation>
    <dc:creator>Nowak, Ulrich</dc:creator>
    <dc:creator>Bansmann, Joachim</dc:creator>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/27916"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-05-23T11:53:32Z</dcterms:available>
    <dcterms:issued>2014</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Nowak, Ulrich</dc:contributor>
    <dc:creator>Yanes Díaz, Rocio</dc:creator>
    <dc:contributor>Balan, Ana</dc:contributor>
    <dcterms:title>Direct observation of magnetic metastability in individual iron nanoparticles</dcterms:title>
    <dc:creator>Nolting, Frithjof</dc:creator>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
  </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