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The structure of the 21K superconductor ThPdxB6-2x x = 0.65, determined by quantitative electron diffraction and through-focus electron holography

  • Author(s): Zandbergen, HW
  • van Zwet, EJ
  • Jansen, J
  • Sarrao, JL
  • Maple, MB
  • Fisk, Z
  • Cava, RJ
  • et al.
Abstract

Through-focus electron holography and quantitative electron diffraction have been applied to determine the structure of the 21 K superconductor ThPdx B6-2x with x ≈ 0.65. This compound adopts a cubic structure (a = 0.42nm; space group, Pm 3 m), which is an intermediate between the structures of the CaB6 and Cu3Au. Short-range ordering results in a superstructure as is evident from diffuse streaks in the electron diffraction pattern. © 1995 Taylor & Francis Ltd.

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