Bloch-phonon coupling and tunneling-induced coherent phonon excitation in semiconductor superlattices
| Publikationstyp: | Zeitschriftenartikel |
| URI (zitierfähiger Link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-45655 |
| Autor/innen: | Först, Michael; Kurz, Heinrich; Dekorsy, Thomas; Leavitt, Richard P. |
| Erscheinungsjahr: | 2003 |
| Erschienen in: | Physical Review B ; 67 (2003), 8. - 85305 |
| DOI (zitierfähiger Link): | https://dx.doi.org/10.1103/PhysRevB.67.085305 |
| Zusammenfassung: |
The coupling of Bloch oscillations to longitudinal optical phonons is investigated in a narrow-well In0.53Ga0.47As/In0.52Al0.48As superlattice. A strong increase of coherent phonon amplitudes is observed when the Bloch oscillations are subsequently tuned into resonance with different optical phonon modes. The rapid dephasing of the Bloch oscillations due to field induced tunneling from the weakly bound miniband into above-barrier continuum states leads to an additional and new excitation process of coherent phonons in superlattices at high electric fields. Polarization dependent measurements confirm their generation via Coulomb interaction excluding any contribution through impulsively stimulated Raman scattering.
|
| Fachgebiet (DDC): | 530 Physik |
| Link zur Lizenz: | Nutzungsbedingungen |
Zitieren
Dateien zu dieser Ressource
![[PDF]](/themes/Kops/images/mimes/pdf.png "PDF file"){kind=small}
FÖRST, Michael, Heinrich KURZ, Thomas DEKORSY, Richard P. LEAVITT, 2003. Bloch-phonon coupling and tunneling-induced coherent phonon excitation in semiconductor superlattices. In: Physical Review B. 67(8), 85305. Available under: doi: 10.1103/PhysRevB.67.085305
@article{Forst2003Bloch-5314, title={Bloch-phonon coupling and tunneling-induced coherent phonon excitation in semiconductor superlattices}, year={2003}, doi={10.1103/PhysRevB.67.085305}, number={8}, volume={67}, journal={Physical Review B}, author={Först, Michael and Kurz, Heinrich and Dekorsy, Thomas and Leavitt, Richard P.}, note={Article Number: 85305} }
<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/rdf/resource/123456789/5314"> <dc:language>eng</dc:language> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/5314"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:54:51Z</dcterms:available> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Leavitt, Richard P.</dc:contributor> <dc:contributor>Först, Michael</dc:contributor> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/5314/1/Bloch_phonon_coupling_and_tunneling_induced_coherent_phonon_excitation_in_semiconductor_superlattices.pdf"/> <dcterms:title>Bloch-phonon coupling and tunneling-induced coherent phonon excitation in semiconductor superlattices</dcterms:title> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:creator>Kurz, Heinrich</dc:creator> <dcterms:abstract xml:lang="eng">The coupling of Bloch oscillations to longitudinal optical phonons is investigated in a narrow-well In0.53Ga0.47As/In0.52Al0.48As superlattice. A strong increase of coherent phonon amplitudes is observed when the Bloch oscillations are subsequently tuned into resonance with different optical phonon modes. The rapid dephasing of the Bloch oscillations due to field induced tunneling from the weakly bound miniband into above-barrier continuum states leads to an additional and new excitation process of coherent phonons in superlattices at high electric fields. Polarization dependent measurements confirm their generation via Coulomb interaction excluding any contribution through impulsively stimulated Raman scattering.</dcterms:abstract> <dc:format>application/pdf</dc:format> <dc:creator>Leavitt, Richard P.</dc:creator> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:rights>terms-of-use</dc:rights> <dcterms:issued>2003</dcterms:issued> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:contributor>Kurz, Heinrich</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Physical Review B 67 (2003), 8, 085305</dcterms:bibliographicCitation> <dc:creator>Först, Michael</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:54:51Z</dc:date> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/5314/1/Bloch_phonon_coupling_and_tunneling_induced_coherent_phonon_excitation_in_semiconductor_superlattices.pdf"/> </rdf:Description> </rdf:RDF>
Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)
| Bloch_phonon_coupling_and_tunneling_induced_coherent_phonon_excitation_in_semiconductor_superlattices.pdf | 84 |
Das Dokument erscheint in:
Solange nicht anders angezeigt, wird die Lizenz wie folgt beschrieben: terms-of-use
KOPS Suche
Stöbern
Mein Benutzerkonto
