NiGe2: A new intermetallic compound synthesized under high-pressure

Hirotsugu Takizawa, Kyota Uheda, Tadashi Endo

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


A new nickel germanide, NiGe2, was synthesized under high pressure and temperature condition and the crystal structure was solved by the Rietveld analysis of the powder X-ray diffraction data. Single phase NiGe2 was obtained from the stoichiometric mixture of elemental components by the reaction at 5.5 GPa and 700 °C. The compound crystallizes into orthorhombic structure with the space group Cmca, isostructural with CoGe2. Lattice parameters were determined to be a = 10.830(5) angstroms, b = 5.763(3) angstroms, c = 5.762(3) angstroms. The structure contains isolated Ni-Ni bonds along the a-axis. The compound is a metallic conductor with a temperature independent susceptibility.

Original languageEnglish
Pages (from-to)306-310
Number of pages5
JournalJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - 2000 Jun 6


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