Temperature effects on the phonon spectrum in YBa2Cu3O7 single crystal and thin films

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059_zphysB_1988.pdf
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1988
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Feile, Rudolf
Kowalewski, Jerzy
Assmus, Wolf
Schubert, J.
Poppe, Ulrich
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We have performed detailed investigations on the temperature dependence of the 335 cm 1 phonon in single crystals and thin films of the YBa2Cu3O7 superconductor. The frequency of this phonon exhibits a downshift of about 5 cm 1 on passing the superconducting transition from above. The shift of the phonon in thin epitaxial films on MgO or SrTiO3 substrates is only about 2.5 cm 1. The width of the asymmetric phonon line displays a slight increase below Tc due to the electron-phonon interaction in these systems.

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ISO 690FEILE, Rudolf, Paul LEIDERER, Jerzy KOWALEWSKI, Wolf ASSMUS, J. SCHUBERT, Ulrich POPPE, 1988. Temperature effects on the phonon spectrum in YBa2Cu3O7 single crystal and thin films. In: Zeitschrift für Physik / B. 1988, 73(2), pp. 155-160. Available under: doi: 10.1007/BF01305732
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@article{Feile1988Tempe-9464,
  year={1988},
  doi={10.1007/BF01305732},
  title={Temperature effects on the phonon spectrum in YBa2Cu3O7 single crystal and thin films},
  number={2},
  volume={73},
  journal={Zeitschrift für Physik / B},
  pages={155--160},
  author={Feile, Rudolf and Leiderer, Paul and Kowalewski, Jerzy and Assmus, Wolf and Schubert, J. and Poppe, Ulrich}
}
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