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A new optical method for measuring the electron-phonon interaction parameter λ〈Ω2〉 using the spectral dependence of the relaxation rate

  • Atoms, Spectra and Radiation
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Abstract

The spectral dependence of the electron-phonon relaxation rate γe−ph(ℏω) in metals is studied in pump-supercontinuum-probe (PSCP) experiments with femtosecond time resolution. Investigation of this spectral dependence, which exhibits a substantial slowing of the relaxation rate γe−ph(ℏω) near the Fermi level E F , using the parametrization γe−ph(ℏω)∝λ〈Ω2〉 (ℏω−E F )2 makes it possible to determine directly the electron-phonon interaction parameter λ〈Ω2〉. The parameter λ〈Ω2〉 for YBa2Cu3O7−δ is analyzed using this method.

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Authors and Affiliations

  1. Spectroscopy Institute, Russian Academy of Sciences, 142092, Troitsk, Moscow District, Russia

    A. L. Dobryakov & Yu. E. Lozovik

Authors
  1. A. L. Dobryakov
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  2. Yu. E. Lozovik
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Pis’ma Zh. Éksp. Teor. Fiz. 70, No. 5, 329–332 (10 September 1999)

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Dobryakov, A.L., Lozovik, Y.E. A new optical method for measuring the electron-phonon interaction parameter λ〈Ω2〉 using the spectral dependence of the relaxation rate. Jetp Lett. 70, 329–333 (1999). https://doi.org/10.1134/1.568175

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  • DOI: https://doi.org/10.1134/1.568175

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