TY - JOUR
T1 - Crystalline structure of Ba2YCu0.25W0.75O6
T2 - A member of the new set of Ba2YzCuxW1-xO6 solid solutions
AU - Bokhimi,
AU - Morales, A.
AU - García-Ruiz, A.
PY - 1996/3
Y1 - 1996/3
N2 - A model for the crystalline structure of Ba2YCu0.25W0.75O6 solid solution is given. The model proposed a perovskite ordered structure, with a cubic unit cell made from eight perovskite-like units and having a symmetry described by the space group Fm3m. The crystalline structure was refined by the Rietveld technique, giving RF=0.048 for 82 reflections. The solid solution was characterized by the following parameters: Z=4, Mr=613.2, a=8.43630(8) Å, V=600.42(1) Å3, Dx=6.78 g cm-3, μ=209.04 mm-1, and F(000)=1047. The model assumed that copper and tungsten atoms, which were ordered with Y atoms, had the same local environment. Therefore, it was only a first approximation to the crystalline structure.
AB - A model for the crystalline structure of Ba2YCu0.25W0.75O6 solid solution is given. The model proposed a perovskite ordered structure, with a cubic unit cell made from eight perovskite-like units and having a symmetry described by the space group Fm3m. The crystalline structure was refined by the Rietveld technique, giving RF=0.048 for 82 reflections. The solid solution was characterized by the following parameters: Z=4, Mr=613.2, a=8.43630(8) Å, V=600.42(1) Å3, Dx=6.78 g cm-3, μ=209.04 mm-1, and F(000)=1047. The model assumed that copper and tungsten atoms, which were ordered with Y atoms, had the same local environment. Therefore, it was only a first approximation to the crystalline structure.
UR - http://www.scopus.com/inward/record.url?scp=0040063685&partnerID=8YFLogxK
U2 - 10.1017/s0885715600008903
DO - 10.1017/s0885715600008903
M3 - Artículo
SN - 0885-7156
VL - 11
SP - 42
EP - 44
JO - Powder Diffraction
JF - Powder Diffraction
IS - 1
ER -