Large Spin Hall Magnetoresistance in Antiferromagnetic α−Fe2O3/Pt Heterostructures

Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2020
Autor:innen
Fischer, Johanna
Althammer, Matthias
Vlietstra, Nynke
Huebl, Hans
Gross, Rudolf
Geprägs, Stephan
Opel, Matthias
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
https://doi.org/10.1103/PhysRevApplied.13.014019
ArXiv-ID
http://arxiv.org/abs/1907.13393v4
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Physik
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Physical Review Applied. American Physical Society (APS). 2020, 13(1), 014019. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.13.014019
Zusammenfassung

We investigate the spin Hall magnetoresistance (SMR) at room temperature in thin film heterostructures of antiferromagnetic, insulating, (0001)-oriented alpha-Fe2O3 (hematite) and Pt. We measure their longitudinal and transverse resistivities while rotating an applied magnetic field of up to 17T in three orthogonal planes. For out-of-plane magnetotransport measurements, we find indications for a multidomain antiferromagnetic configuration whenever the field is aligned along the film normal. For in-plane field rotations, we clearly observe a sinusoidal resistivity oscillation characteristic for the SMR due to a coherent rotation of the Neel vector. The maximum SMR amplitude of 0.25% is, surprisingly, twice as high as for prototypical ferrimagnetic Y3Fe5O12/Pt heterostructures. The SMR effect saturates at much smaller magnetic fields than in comparable antiferromagnets, making the alpha-Fe2O3/Pt system particularly interesting for room-temperature antiferromagnetic spintronic applications.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690FISCHER, Johanna, Matthias ALTHAMMER, Nynke VLIETSTRA, Hans HUEBL, Sebastian T. B. GOENNENWEIN, Rudolf GROSS, Stephan GEPRÄGS, Matthias OPEL, 2020. Large Spin Hall Magnetoresistance in Antiferromagnetic α−Fe2O3/Pt Heterostructures. In: Physical Review Applied. American Physical Society (APS). 2020, 13(1), 014019. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.13.014019
BibTex
@article{Fischer2020Large-51840,
  year={2020},
  doi={10.1103/PhysRevApplied.13.014019},
  title={Large Spin Hall Magnetoresistance in Antiferromagnetic α−Fe<sub>2</sub>O<sub>3</sub>/Pt Heterostructures},
  number={1},
  volume={13},
  journal={Physical Review Applied},
  author={Fischer, Johanna and Althammer, Matthias and Vlietstra, Nynke and Huebl, Hans and Goennenwein, Sebastian T. B. and Gross, Rudolf and Geprägs, Stephan and Opel, Matthias},
  note={Article Number: 014019}
}
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/123456789/51840">
    <dc:creator>Fischer, Johanna</dc:creator>
    <dc:contributor>Vlietstra, Nynke</dc:contributor>
    <dc:contributor>Althammer, Matthias</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-11-17T14:02:27Z</dc:date>
    <dc:creator>Gross, Rudolf</dc:creator>
    <dc:creator>Vlietstra, Nynke</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-11-17T14:02:27Z</dcterms:available>
    <dc:contributor>Geprägs, Stephan</dc:contributor>
    <dc:creator>Huebl, Hans</dc:creator>
    <dc:contributor>Fischer, Johanna</dc:contributor>
    <dcterms:title>Large Spin Hall Magnetoresistance in Antiferromagnetic α−Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;/Pt Heterostructures</dcterms:title>
    <dc:creator>Opel, Matthias</dc:creator>
    <dc:contributor>Gross, Rudolf</dc:contributor>
    <dc:contributor>Goennenwein, Sebastian T. B.</dc:contributor>
    <dcterms:issued>2020</dcterms:issued>
    <dc:language>eng</dc:language>
    <dc:creator>Geprägs, Stephan</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:abstract xml:lang="eng">We investigate the spin Hall magnetoresistance (SMR) at room temperature in thin film heterostructures of antiferromagnetic, insulating, (0001)-oriented alpha-Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; (hematite) and Pt. We measure their longitudinal and transverse resistivities while rotating an applied magnetic field of up to 17T in three orthogonal planes. For out-of-plane magnetotransport measurements, we find indications for a multidomain antiferromagnetic configuration whenever the field is aligned along the film normal. For in-plane field rotations, we clearly observe a sinusoidal resistivity oscillation characteristic for the SMR due to a coherent rotation of the Neel vector. The maximum SMR amplitude of 0.25% is, surprisingly, twice as high as for prototypical ferrimagnetic Y&lt;sub&gt;3&lt;/sub&gt;Fe&lt;sub&gt;5&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt;/Pt heterostructures. The SMR effect saturates at much smaller magnetic fields than in comparable antiferromagnets, making the alpha-Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;/Pt system particularly interesting for room-temperature antiferromagnetic spintronic applications.</dcterms:abstract>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:creator>Althammer, Matthias</dc:creator>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/51840"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Goennenwein, Sebastian T. B.</dc:creator>
    <dc:contributor>Opel, Matthias</dc:contributor>
    <dc:contributor>Huebl, Hans</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