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Broadband infrared conductivity in an YBa2Cu3O6.7 thin film

Ferroelectrics. Bd. 249. H. 1. 2011 S. 165 - 174

Erscheinungsjahr: 2011

ISBN/ISSN: 0015-0193

Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)

Sprache: Englisch

Doi/URN: DOI: 10.1080/00150190108214978

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Inhaltszusammenfassung


Infrared reflectivity of an oxygen reduced YBa2Cu3O6.7 thin film was measured in the frequency range 30 cm-1 < v < 7000 cm-1 and for temperatures 5 K < T < 300 K. At lower frequencies, 3 cm-1 < v < 40 cm-1, the complex conductivity *=1+i2 was measured directly using a transmission technique. Both data sets were combined to obtain the reflectivity in a broad frequency range and thus to improve substantially the quality of the Kramers-Kronig analysis at low frequencies. The analysis of the cond...Infrared reflectivity of an oxygen reduced YBa2Cu3O6.7 thin film was measured in the frequency range 30 cm-1 < v < 7000 cm-1 and for temperatures 5 K < T < 300 K. At lower frequencies, 3 cm-1 < v < 40 cm-1, the complex conductivity *=1+i2 was measured directly using a transmission technique. Both data sets were combined to obtain the reflectivity in a broad frequency range and thus to improve substantially the quality of the Kramers-Kronig analysis at low frequencies. The analysis of the conductivity spectra reveals that the low-frequency spectral weight strongly depends on temperature directly above TC but saturates for T ≥ 150 K. » weiterlesen» einklappen

  • infrared spectroscopy, superconductivity, thin films, complex conductivity, Kramers-Kronig analysis, YBa2Cu3O6+δ

Autoren


Pimenov, A. (Autor)
Hartinger, CH. (Autor)
Mayr, F. (Autor)
Loidl, A. (Autor)

Klassifikation


DFG Fachgebiet:
Physik der kondensierten Materie

DDC Sachgruppe:
Physik

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