Ma. Arillo et al., STRUCTURAL AND ELECTRICAL CHARACTERIZATION OF NEW MATERIALS WITH PEROVSKITE STRUCTURE, Solid state ionics, 95(3-4), 1997, pp. 241-248
The series M1-3xLa1+x(MgW)O-6, where M = Na, K and x = 0.0, 0.11, and
0.22, was obtained by solid state reactions in air at 723 and 1273 K.
The formulae were inferred from different techniques and they were in
good agreement with the structure determinations. The structures could
be referred to a perovskite-type and show an ordered arrangement of M
gO6 and WO6 octahedra in the B-sites and also Na and La cations are or
dered in layers into the A-sites. The electrical behaviour of these ph
ases show that the activation energies are relatively high and they co
uld be related to the previous structural analysis.