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1 results

  • Crystallographic study of ternary ordered skutterudite IrGe1.5Se1.5

  • F. Laufek, J. Návrátil
  • Journal:
    Powder Diffraction / Volume 25 / Issue 3 / September 2010
    Published online by Cambridge University Press:
    29 February 2012, pp. 247-252

  • The crystal structure of skutterudite-related phase IrGe1.5Se1.5 has been refined by the Rietveld method from laboratory X-ray powder diffraction data. Refined crystallographic data for IrGe1.5Se1.5 are a=12.0890(2) Å, c=14.8796(3) Å, V=1883.23(6) Å3, space group R3 (No. 148), Z=24, and Dc=8.87 g/cm3. Its crystal structure can be derived from the ideal skutterudite structure (CoAs3), where Se and Ge atoms are ordered in layers perpendicular to the [111] direction of the original skutterudite cell. Weak distortions of the anion and cation sublattices were also observed.