Publikation: g-tensor resonance in double quantum dots with site-dependent g-tensors
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
Pauli spin blockade (PSB) has long been an important tool for spin read-out in double quantum dot (DQD) systems with interdot tunneling t. In this paper we show that the blockade is lifted if the two dots experience distinct effective magnetic fields caused by site-dependent g-tensors gL and gR for the left and right dot, and that this effect can be more pronounced than the leakage current due to the spin orbit interaction (SOI) via spin-flip tunneling and the hyperfine interaction (HFI) of the electron spin with the host nuclear spins. Using analytical results obtained in special parameter regimes, we show that information about both the out-of-plane and in-plane g-factors of the dots can be inferred from characteristic features of the magneto-transport curve. For a symmetric DQD, we predict a pronounced maximum in the leakage current at the characteristic out-of-plane magnetic field B* = t / μB √gz L gz R which we term the g-tensor resonance of the system. Moreover, we extend the results to contain the effects of strong SOI and argue that in this more general case the leakage current carries information about the g-tensor components and SOI of the system.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
MUTTER, Philipp M., Guido BURKARD, 2021. g-tensor resonance in double quantum dots with site-dependent g-tensors. In: Materials for Quantum Technology. Institute of Physics Publishing (IOP). 2021, 1(1), 015003. eISSN 2633-4356. Available under: doi: 10.1088/2633-4356/ab9c3aBibTex
@article{Mutter2021-03-01gtens-51059, year={2021}, doi={10.1088/2633-4356/ab9c3a}, title={g-tensor resonance in double quantum dots with site-dependent g-tensors}, number={1}, volume={1}, journal={Materials for Quantum Technology}, author={Mutter, Philipp M. and Burkard, Guido}, note={Article Number: 015003} }
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/123456789/51059"> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/51059"/> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/51059/1/Mutter_2-fbni1g5mpvch4.pdf"/> <dcterms:issued>2021-03-01</dcterms:issued> <dc:contributor>Burkard, Guido</dc:contributor> <dc:rights>Attribution 4.0 International</dc:rights> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-09-28T12:33:44Z</dcterms:available> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dc:language>eng</dc:language> <dc:contributor>Mutter, Philipp M.</dc:contributor> <dcterms:abstract xml:lang="eng">Pauli spin blockade (PSB) has long been an important tool for spin read-out in double quantum dot (DQD) systems with interdot tunneling t. In this paper we show that the blockade is lifted if the two dots experience distinct effective magnetic fields caused by site-dependent g-tensors gL and gR for the left and right dot, and that this effect can be more pronounced than the leakage current due to the spin orbit interaction (SOI) via spin-flip tunneling and the hyperfine interaction (HFI) of the electron spin with the host nuclear spins. Using analytical results obtained in special parameter regimes, we show that information about both the out-of-plane and in-plane g-factors of the dots can be inferred from characteristic features of the magneto-transport curve. For a symmetric DQD, we predict a pronounced maximum in the leakage current at the characteristic out-of-plane magnetic field B* = t / μ<sub>B</sub> √g<sub>z</sub><sup> L</sup> g<sub>z</sub> <sup>R</sup> which we term the g-tensor resonance of the system. Moreover, we extend the results to contain the effects of strong SOI and argue that in this more general case the leakage current carries information about the g-tensor components and SOI of the system.</dcterms:abstract> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2020-09-28T12:33:44Z</dc:date> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/51059/1/Mutter_2-fbni1g5mpvch4.pdf"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:title>g-tensor resonance in double quantum dots with site-dependent g-tensors</dcterms:title> <dc:creator>Burkard, Guido</dc:creator> <dc:creator>Mutter, Philipp M.</dc:creator> </rdf:Description> </rdf:RDF>