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Temperature Effects on the Phonon Spectrum in YBa2Cu3O7 Single Crystals and Thin Films

Temperature Effects on the Phonon Spectrum in YBa2Cu3O7 Single Crystals and Thin Films

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FEILE, Rudolf, Paul LEIDERER, Jerzy KOWALEWSKI, Wolf ASSMUS, J. SCHUBERT, Ulrich POPPE, 1989. Temperature Effects on the Phonon Spectrum in YBa2Cu3O7 Single Crystals and Thin Films. In: Journal of the Less Common Metals. 151, pp. 125-132

@article{Feile1989Tempe-8989, title={Temperature Effects on the Phonon Spectrum in YBa2Cu3O7 Single Crystals and Thin Films}, year={1989}, doi={10.1016/0022-5088(89)90306-8}, volume={151}, journal={Journal of the Less Common Metals}, pages={125--132}, author={Feile, Rudolf and Leiderer, Paul and Kowalewski, Jerzy and Assmus, Wolf and Schubert, J. and Poppe, Ulrich} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/8989"> <dc:creator>Kowalewski, Jerzy</dc:creator> <dc:contributor>Feile, Rudolf</dc:contributor> <dc:creator>Leiderer, Paul</dc:creator> <dc:creator>Poppe, Ulrich</dc:creator> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:52:39Z</dc:date> <dcterms:abstract xml:lang="eng">We have performed a detailed investigation of the temperature dependence of the 385cm-1 phonon in single crystals and thin films of the YBa2Cu3O7 superconductor by means of Raman spectroscopy. In the single crystal the frequency of this phonon shows a downshift of about 5 cm-1 on passing the superconducting transition from above, which is referred to a strong electron-phonon interaction in the superconductor. The shift of the phonon in thin epitaxial films on MgO or SrTiO3 substrates is only about 2.5 cm-1. This difference may be a result of a structural transition in the single crystal which is possibly suppressed in the films because of the epitaxy. The electron-phonon interaction is also indicated by the asymmetry of the phonon line and a slight increase of the linewidth below Tc.</dcterms:abstract> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:52:39Z</dcterms:available> <dcterms:bibliographicCitation>First publ. in: Journal of the Less Common Metals 151 (1989), pp. 125-132</dcterms:bibliographicCitation> <dc:format>application/pdf</dc:format> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:rights>deposit-license</dc:rights> <dcterms:title>Temperature Effects on the Phonon Spectrum in YBa2Cu3O7 Single Crystals and Thin Films</dcterms:title> <dc:contributor>Leiderer, Paul</dc:contributor> <dc:contributor>Schubert, J.</dc:contributor> <dc:creator>Assmus, Wolf</dc:creator> <dc:contributor>Assmus, Wolf</dc:contributor> <dc:creator>Feile, Rudolf</dc:creator> <dc:contributor>Poppe, Ulrich</dc:contributor> <dc:creator>Schubert, J.</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/8989"/> <dc:contributor>Kowalewski, Jerzy</dc:contributor> <dcterms:issued>1989</dcterms:issued> </rdf:Description> </rdf:RDF>

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