ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The crystal structure of LaFe9Si4 intermetallic compound equilibrated at 1173 K has been determined by the x-ray powder diffraction and refined by the Rietveld technique. The crystal structure belongs to the tetragonal symmetry with space group I4/mcm, which can be derived from the cubic NaZn13-type structure. Each unit cell contains four formula units of LaFe9Si4. The lattice parameters are a=7.932(1) A(ring) and c=11.677(2) A(ring). The calculated density is Dx=6.86(4) g/cm3. In the structure there are five kinds of equivalent positions, i.e., 4a, 16l(1), 16k, 16l(2), and 4d, which are occupied by 4La, 16Fe(1), 16Fe(2), 16Si, and 4Fe(3) atoms, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.357359
Permalink