Adiabatic pumping of two-dimensional electrons in a ratchet-type lateral superlattice

Weig, Eva M.; Lorke, Andreas; Wegscheider, Werner; Bichler, Max

Adiabatic pumping of two-dimensional electrons in a ratchet-type lateral superlattice

Dateien

Hoehberger_255249.pdfGröße: 62.26 KBDownloads: 284

Datum

2001

Autor:innen

Weig, Eva M.

Lorke, Andreas

Wegscheider, Werner

Bichler, Max

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Applied Physics Letters. 2001, 78(19), pp. 2905-2907. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.1355672

Zusammenfassung

A pair of interdigitated gates, interlacing off center, is used to generate a widely tunable one-dimensional lateral superlattice in the two-dimensional electron gas at a GaAs/AlGaAs heterointerface. Magnetotransport measurements with statically biased gates demonstrate that the conduction-band modulation is strongly influenced by higher harmonics, thus allowing the realization of both symmetric and ratchet-like periodic potential modulations. Temporally phase-shifted ac biasing of the gates results in adiabatic pumping of electrons. The generated dc current increases linearly with the pumping frequency and can be reversed in situ by inverting the phase shift.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

WEIG, Eva M., Andreas LORKE, Werner WEGSCHEIDER, Max BICHLER, 2001. Adiabatic pumping of two-dimensional electrons in a ratchet-type lateral superlattice. In: Applied Physics Letters. 2001, 78(19), pp. 2905-2907. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.1355672

BibTex

@article{Weig2001Adiab-25524,
  year={2001},
  doi={10.1063/1.1355672},
  title={Adiabatic pumping of two-dimensional electrons in a ratchet-type lateral superlattice},
  number={19},
  volume={78},
  issn={0003-6951},
  journal={Applied Physics Letters},
  pages={2905--2907},
  author={Weig, Eva M. and Lorke, Andreas and Wegscheider, Werner and Bichler, Max}
}

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/123456789/25524">
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/25524/2/Hoehberger_255249.pdf"/>
    <dc:contributor>Bichler, Max</dc:contributor>
    <dcterms:title>Adiabatic pumping of two-dimensional electrons in a ratchet-type lateral superlattice</dcterms:title>
    <dc:creator>Weig, Eva M.</dc:creator>
    <dcterms:bibliographicCitation>Applied Physics Letters ; 78 (2001), 19. - S. 2905-2907</dcterms:bibliographicCitation>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Bichler, Max</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Wegscheider, Werner</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:issued>2001</dcterms:issued>
    <dc:contributor>Weig, Eva M.</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:contributor>Lorke, Andreas</dc:contributor>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/25524"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/25524/2/Hoehberger_255249.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:creator>Lorke, Andreas</dc:creator>
    <dcterms:abstract xml:lang="eng">A pair of interdigitated gates, interlacing off center, is used to generate a widely tunable one-dimensional lateral superlattice in the two-dimensional electron gas at a GaAs/AlGaAs heterointerface. Magnetotransport measurements with statically biased gates demonstrate that the conduction-band modulation is strongly influenced by higher harmonics, thus allowing the realization of both symmetric and ratchet-like periodic potential modulations. Temporally phase-shifted ac biasing of the gates results in adiabatic pumping of electrons. The generated dc current increases linearly with the pumping frequency and can be reversed in situ by inverting the phase shift.</dcterms:abstract>
    <dc:creator>Wegscheider, Werner</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-12-19T08:37:05Z</dc:date>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-12-19T08:37:05Z</dcterms:available>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Nein