Publikation:

Anisotropic non-split zero-energy vortex bound states in a conventional superconductor

Lade...
Vorschaubild

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2021

Autor:innen

Kim, Howon
Nagai, Yuki
Schreyer, Dominik
Wiesendanger, Roland

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
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Applied Physics Reviews. American Institute of Physics (AIP). 2021, 8(3), 031417. eISSN 1931-9401. Available under: doi: 10.1063/5.0055839

Zusammenfassung

Vortices in topological superconductors are predicted to host Majorana bound states (MBSs) as exotic quasiparticles. In recent experiments, the spatially non-split zero-energy vortex bound state in topological superconductors has been regarded as an essential spectroscopic signature for the observation of MBSs. Here, we report the observation of anisotropic non-split zero-energy vortex bound states in a conventional elemental superconductor with a topologically trivial band structure using scanning tunneling microscopy and spectroscopy. The experimental results, corroborated by quasi-classical theoretical calculations, indicate that the non-split states directly reflect the quasiparticle trajectories governed by the surface electronic structure. Our study implies that non-split zero-energy states are not a conclusive signature of MBSs in vortex cores, in particular for superconducting systems not being in the quantum limit, stimulating a revision of the current understanding of such states.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690KIM, Howon, Yuki NAGAI, Levente RÓZSA, Dominik SCHREYER, Roland WIESENDANGER, 2021. Anisotropic non-split zero-energy vortex bound states in a conventional superconductor. In: Applied Physics Reviews. American Institute of Physics (AIP). 2021, 8(3), 031417. eISSN 1931-9401. Available under: doi: 10.1063/5.0055839
BibTex
@article{Kim2021Aniso-55805,
  year={2021},
  doi={10.1063/5.0055839},
  title={Anisotropic non-split zero-energy vortex bound states in a conventional superconductor},
  number={3},
  volume={8},
  journal={Applied Physics Reviews},
  author={Kim, Howon and Nagai, Yuki and Rózsa, Levente and Schreyer, Dominik and Wiesendanger, Roland},
  note={Article Number: 031417}
}
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/123456789/55805">
    <dc:language>eng</dc:language>
    <dc:contributor>Nagai, Yuki</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-12-09T09:13:34Z</dc:date>
    <dc:contributor>Wiesendanger, Roland</dc:contributor>
    <dc:creator>Nagai, Yuki</dc:creator>
    <dc:contributor>Schreyer, Dominik</dc:contributor>
    <dc:contributor>Rózsa, Levente</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-12-09T09:13:34Z</dcterms:available>
    <dcterms:title>Anisotropic non-split zero-energy vortex bound states in a conventional superconductor</dcterms:title>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/55805"/>
    <dcterms:abstract xml:lang="eng">Vortices in topological superconductors are predicted to host Majorana bound states (MBSs) as exotic quasiparticles. In recent experiments, the spatially non-split zero-energy vortex bound state in topological superconductors has been regarded as an essential spectroscopic signature for the observation of MBSs. Here, we report the observation of anisotropic non-split zero-energy vortex bound states in a conventional elemental superconductor with a topologically trivial band structure using scanning tunneling microscopy and spectroscopy. The experimental results, corroborated by quasi-classical theoretical calculations, indicate that the non-split states directly reflect the quasiparticle trajectories governed by the surface electronic structure. Our study implies that non-split zero-energy states are not a conclusive signature of MBSs in vortex cores, in particular for superconducting systems not being in the quantum limit, stimulating a revision of the current understanding of such states.</dcterms:abstract>
    <dc:contributor>Kim, Howon</dc:contributor>
    <dc:creator>Wiesendanger, Roland</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Kim, Howon</dc:creator>
    <dc:creator>Rózsa, Levente</dc:creator>
    <dc:creator>Schreyer, Dominik</dc:creator>
    <dcterms:issued>2021</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
Ja
Diese Publikation teilen