Na3Ca2TaO6, a rock-salt superstructure phase with a fully ordered cation arrangement
The title quaternary oxide, trisodium dicalcium tantalum hexaoxide, is isostructural with Li(3)Ni(2)TaO(6), a partially ordered rock-salt phase. The Na, Ca and Ta atoms occupy octahedral sites in an orderly manner and form a cation-ordered superstructure.
Yamane
H
Institute for Advanced Materials Processing, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan. yamane@ibis.iamp.tohoku.ac. jp.
Takahashi
H
Kajiwara
T
Shimada
M