As3Yb4
Staub, U.Ochiai, A.Patterson, B.D.Fauth, F.Vaughan, G.M.B.Soderholm, L.Schulze-Briese, C.Cross, J.O.Shi, M.Dooryhee, E.
Physik (Berlin) (2002) 318, 284-288
a=12.5591Å b=12.5591Å c=7.5282Å
α=90° β=90° γ=120°