Pa
Benedict, U.Spirlet, J.C.Dufour, C.Peterson, J.R.Birkel, I.Holzapfel, W.B.
Journal of Magnetism and Magnetic Materials (1982) 29, 287-290
a=3.94Å b=3.94Å c=3.244Å
α=90° β=90° γ=90°
OPa
Benedict, U.Toussaint, J.Cl.Buijs, K.Dufour, C.
Journal of the Less-Common Metals (1975) 42, 345-354
a=4.9226Å b=4.9226Å c=4.9226Å