Magnetic Rings : A Playground to Study Geometrically Confined Domain Walls

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2008
Autor:innen
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (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
Publikationstyp
Beitrag zu einem Konferenzband
Publikationsstatus
Published
Erschienen in
AZZERBONI, Bruno, ed. and others. Magnetic Nanostructures in Modern Technology : Spintronics, Magnetic MEMS and Recording. Dordrecht: Springer, 2008, pp. 85-104. ISBN 978-1-4020-6336-7. Available under: doi: 10.1007/978-1-4020-6338-1_6
Zusammenfassung

Geometrically confined domain walls are comprehensively investigated using a range of magnetometry and imaging techniques. The spin structures of head-to-head domain walls are systematically determined and a quantitative domain wall type phase diagrams for NiFe and Co are obtained and compared with available theoretical predictions and micromagnetic simulations. Differences to the experiment are explained taking into account thermal excitations. Thermally induced domain wall type transformations are observed, from which a vortex core nucleation barrier height is obtained. The stray field of a domain wall is mapped directly with sub-10 nm resolution using off-axis electron holography, and the field intensity is found to decrease as 1/r with distance. The magnetic dipolar coupling of domain walls in NiFe and Co elements is studied using x-ray magnetic circular dicroism photoemission electron microscopy. We observe that the spin structures of interacting domain walls change from vortex to transverse walls, when the distance between the walls is reduced. Using the measured stray field values, the energy barrier height distribution for the nucleation of a vortex core is obtained. Finally the pinning behaviour at constrictions is determined.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
micromagnetic simulations, spin-polarized current, magnetic switching, precessional states
Konferenz
Proceedings of the NATO Advanced Study Institute on Magnetic Nanostructures for Micro-Electromechanical Systems and Spintronic Applications, 2. Juli 2006 - 15. Juli 2006, Catona, Italy
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690KLÄUI, Mathias, 2008. Magnetic Rings : A Playground to Study Geometrically Confined Domain Walls. Proceedings of the NATO Advanced Study Institute on Magnetic Nanostructures for Micro-Electromechanical Systems and Spintronic Applications. Catona, Italy, 2. Juli 2006 - 15. Juli 2006. In: AZZERBONI, Bruno, ed. and others. Magnetic Nanostructures in Modern Technology : Spintronics, Magnetic MEMS and Recording. Dordrecht: Springer, 2008, pp. 85-104. ISBN 978-1-4020-6336-7. Available under: doi: 10.1007/978-1-4020-6338-1_6
BibTex
@inproceedings{Klaui2008Magne-58853,
  year={2008},
  doi={10.1007/978-1-4020-6338-1_6},
  title={Magnetic Rings : A Playground to Study Geometrically Confined Domain Walls},
  isbn={978-1-4020-6336-7},
  publisher={Springer},
  address={Dordrecht},
  booktitle={Magnetic Nanostructures in Modern Technology : Spintronics, Magnetic MEMS and Recording},
  pages={85--104},
  editor={Azzerboni, Bruno},
  author={Kläui, Mathias}
}
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/123456789/58853">
    <dc:contributor>Kläui, Mathias</dc:contributor>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/58853"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2022-10-18T09:16:45Z</dcterms:available>
    <dcterms:title>Magnetic Rings : A Playground to Study Geometrically Confined Domain Walls</dcterms:title>
    <dcterms:abstract xml:lang="eng">Geometrically confined domain walls are comprehensively investigated using a range of magnetometry and imaging techniques. The spin structures of head-to-head domain walls are systematically determined and a quantitative domain wall type phase diagrams for NiFe and Co are obtained and compared with available theoretical predictions and micromagnetic simulations. Differences to the experiment are explained taking into account thermal excitations. Thermally induced domain wall type transformations are observed, from which a vortex core nucleation barrier height is obtained. The stray field of a domain wall is mapped directly with sub-10 nm resolution using off-axis electron holography, and the field intensity is found to decrease as 1/r with distance. The magnetic dipolar coupling of domain walls in NiFe and Co elements is studied using x-ray magnetic circular dicroism photoemission electron microscopy. We observe that the spin structures of interacting domain walls change from vortex to transverse walls, when the distance between the walls is reduced. Using the measured stray field values, the energy barrier height distribution for the nucleation of a vortex core is obtained. Finally the pinning behaviour at constrictions is determined.</dcterms:abstract>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2022-10-18T09:16:45Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Kläui, Mathias</dc:creator>
    <dcterms:issued>2008</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
Begutachtet
Diese Publikation teilen