Crystallographic studies of perovskite-like compounds. II. Rare earth alluminates
S. GellerBell Telephone Laboratories Incorporated, Murray Hill, New Jersey, U.S.AV. B. BalaBell Telephone Laboratories Incorporated, Murray Hill, New Jersey, U.S.A
1956en
ABI
Abstract
The aluminates of the trivalent ions of Gd, Eu, and Sm are isostructural with GdFeO 3. They belong to space group YD~-Pbnm with four distorted perovskite units in the true crystallographic cell. The aluminates of the trivalent ions of Nd, Pr and La are rhombohedral belonging to space group D~d--R3m with two formula units in the unit cell. These crystals bear a very close structural relationship to the orthorhombie ones.
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