Refinement of the crystal structure of the arsenide HfNiAs.
Автор(и)
I. A. Makara
Ivan Franko National University of Lviv, Analytical Chemistry Department
O. V. Zhak
Ivan Franko National University of Lviv, Analytical Chemistry Department
Анотація
Existence of the ternary arsenide of hafnium and nickel HfNiAs has been reported earlier by [1]. The crystal structure of the isotypic ternary arsenide with cobalt HfCoAs was determined by the same authors using single crystal X-ray data. Both compounds crystallize with orthorhombic Co2Si type structure (space group Pnma). However for the compound HfNiAs only the lattice parameters were refined from powder diffraction data: a = 0.6421(2), b = 0.3760(2), c = 0.7331(3) nm [1]. The goals of our investigation were synthesis and crystal structure determination of the ternary arsenide of hafnium and nickel with equiatomic composition.
