Ba8Fe8O21
Erchak, M.Ward, R.Fankuchen, I.
Journal of the American Chemical Society (1946) 68, 2085-2093
a=8.05Å b=8.05Å c=8.05Å
α=90° β=90° γ=90°
BaFeO3
Erchak, M.Fankuchen, I.Ward, R.
a=4.02Å b=4.02Å c=4.02Å