title: Na3Ca2TaO6, a rock-salt superstructure phase with a fully ordered cation arrangement
abstract: 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.
authors.affiliation: Institute for Advanced Materials Processing, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan. yamane@ibis.iamp.tohoku.ac. jp.
authors.initials: H
authors.lastname: Yamane
authors.initials: H
authors.lastname: Takahashi
authors.initials: T
authors.lastname: Kajiwara
authors.initials: M
authors.lastname: Shimada