New high-pressure polymorph of NiSb2

Hirotsugu Takizawa, Kyota Uheda, Tadashi Endo

研究成果: Article査読

11 被引用数 (Scopus)

抄録

A new polymorph of NiSb2 was obtained under high-pressure/temperature condition of 6 GPa and 550-650 °C. The crystal structure is orthorhombic with the space group Pbca (No. 61), isostructural with the low-temperature form of NiAs2 (pararammelsbergite). The crystallographic parameters were refined by the Rietveld analysis of the powder X-ray diffraction data (a = 0.62866(2) nm, b = 0.63643(2) nm, c = 1.23670(3) nm, Z = 8). The structure can be regarded as an intermediate structure between the marcasite-type and the pyrite-type. The pararammelsbergite-type NiSb2 is a high-pressure form of NiSb2 and the density is slightly higher than that of ambient pressure form with the marcasite-type structure.

本文言語English
ページ(範囲)1399-1403
ページ数5
ジャーナルIntermetallics
8
12
DOI
出版ステータスPublished - 2000 12

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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