Publikation:

Unconventional Meissner screening induced by chiral molecules in a conventional superconductor

Lade...
Vorschaubild

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2021

Autor:innen

Alpern, Hen
Amundsen, Morten
Sukenik, Nir
Yochelis, Shira
Prokscha, Thomas
Gutkin, Vitaly
et al.

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
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Physical Review Materials. American Physical Society. 2021, 5(11), 114801. Available under: doi: 10.1103/PhysRevMaterials.5.114801

Zusammenfassung

The coupling of a superconductor (SC) to a different material often results in a system with unconventional superconducting properties. A conventional SC is a perfect diamagnet expelling magnetic fields out of its volume, a phenomenon known as the Meissner effect. Here, we show that the simple adsorption of a monolayer of chiral molecules (ChMs), which are nonmagnetic in solution, onto the surface of a conventional SC can markedly change its diamagnetic Meissner response. By measuring the internal magnetic field profile in superconducting Nb thin films under an applied transverse field by low-energy muon spin rotation spectroscopy, we demonstrate that the local field profile inside Nb is considerably modified upon molecular adsorption in a way that also depends on the applied field direction. The modification is not limited to the ChMs/Nb interface, but it is long ranged and occurs over a length scale comparable with the superconducting coherence length. Zero-field muon spin spectroscopy measurements in combination with our theoretical analysis show that odd-frequency spin-triplet states induced by the ChMs are responsible for the modification of the Meissner response observed inside Nb. These results indicate that a ChMs/SC system supports odd-frequency spin-triplet pairs due to the molecules acting as a spin-active layer, and therefore, they imply that such a system can be used as a simpler alternative to SC/ferromagnet or SC/topological insulator hybrids for the generation and manipulation of unconventional spin-triplet superconducting states.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

coupling, superconductor, Meissner effect, chiral molecules, spectroscopy, muon spin relaxation & rotation

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690ALPERN, Hen, Morten AMUNDSEN, Roman HARTMANN, Nir SUKENIK, Alfredo SPURI, Shira YOCHELIS, Thomas PROKSCHA, Vitaly GUTKIN, Elke SCHEER, Angelo DI BERNARDO, 2021. Unconventional Meissner screening induced by chiral molecules in a conventional superconductor. In: Physical Review Materials. American Physical Society. 2021, 5(11), 114801. Available under: doi: 10.1103/PhysRevMaterials.5.114801
BibTex
@article{Alpern2021Uncon-55482,
  year={2021},
  doi={10.1103/PhysRevMaterials.5.114801},
  title={Unconventional Meissner screening induced by chiral molecules in a conventional superconductor},
  number={11},
  volume={5},
  journal={Physical Review Materials},
  author={Alpern, Hen and Amundsen, Morten and Hartmann, Roman and Sukenik, Nir and Spuri, Alfredo and Yochelis, Shira and Prokscha, Thomas and Gutkin, Vitaly and Scheer, Elke and Di Bernardo, Angelo},
  note={Article Number: 114801}
}
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/123456789/55482">
    <dcterms:abstract xml:lang="eng">The coupling of a superconductor (SC) to a different material often results in a system with unconventional superconducting properties. A conventional SC is a perfect diamagnet expelling magnetic fields out of its volume, a phenomenon known as the Meissner effect. Here, we show that the simple adsorption of a monolayer of chiral molecules (ChMs), which are nonmagnetic in solution, onto the surface of a conventional SC can markedly change its diamagnetic Meissner response. By measuring the internal magnetic field profile in superconducting Nb thin films under an applied transverse field by low-energy muon spin rotation spectroscopy, we demonstrate that the local field profile inside Nb is considerably modified upon molecular adsorption in a way that also depends on the applied field direction. The modification is not limited to the ChMs/Nb interface, but it is long ranged and occurs over a length scale comparable with the superconducting coherence length. Zero-field muon spin spectroscopy measurements in combination with our theoretical analysis show that odd-frequency spin-triplet states induced by the ChMs are responsible for the modification of the Meissner response observed inside Nb. These results indicate that a ChMs/SC system supports odd-frequency spin-triplet pairs due to the molecules acting as a spin-active layer, and therefore, they imply that such a system can be used as a simpler alternative to SC/ferromagnet or SC/topological insulator hybrids for the generation and manipulation of unconventional spin-triplet superconducting states.</dcterms:abstract>
    <dc:creator>Hartmann, Roman</dc:creator>
    <dc:contributor>Di Bernardo, Angelo</dc:contributor>
    <dc:creator>Amundsen, Morten</dc:creator>
    <dc:creator>Spuri, Alfredo</dc:creator>
    <dc:creator>Yochelis, Shira</dc:creator>
    <dc:creator>Sukenik, Nir</dc:creator>
    <dc:creator>Prokscha, Thomas</dc:creator>
    <dc:contributor>Scheer, Elke</dc:contributor>
    <dc:contributor>Sukenik, Nir</dc:contributor>
    <dc:creator>Scheer, Elke</dc:creator>
    <dc:creator>Di Bernardo, Angelo</dc:creator>
    <dcterms:issued>2021</dcterms:issued>
    <dc:creator>Alpern, Hen</dc:creator>
    <dc:contributor>Hartmann, Roman</dc:contributor>
    <dc:contributor>Prokscha, Thomas</dc:contributor>
    <dc:contributor>Alpern, Hen</dc:contributor>
    <dc:creator>Gutkin, Vitaly</dc:creator>
    <dc:contributor>Yochelis, Shira</dc:contributor>
    <dc:contributor>Gutkin, Vitaly</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-11-09T13:35:16Z</dcterms:available>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:title>Unconventional Meissner screening induced by chiral molecules in a conventional superconductor</dcterms:title>
    <dc:contributor>Spuri, Alfredo</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-11-09T13:35:16Z</dc:date>
    <dc:contributor>Amundsen, Morten</dc:contributor>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:language>eng</dc:language>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/55482"/>
  </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