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Optical properties of the heavy fermion superconductor UBe13

  • Author(s): Klassen, RJ;
  • Bonn, DA;
  • Timusk, T;
  • Smith, JL;
  • Fisk, Z
  • et al.
Abstract

We report on the optical properties of the heavy fermion superconductor UBe13 from 0.050 to 2eV. The reflectance shows sharp structure at low frequencies superimposed on a smooth decrease down to 50% at 1.6eV. The ThBe13 compound is shown for comparison as a non-heavy fermion system. Kramers-Kronig analysis of reflectance measurements yields sharp interband structure in UBe13 in the 0.1 eV region. In the far IR, above 100 K, the material shows normal Drude behavior: the optical conductivity agrees well with the d.c. conductivity. © 1987.

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