Ba Fe4 O11 Ti2 Obradors X, Collomb A, Pannetier J, Isalgue A, Tejada J, Joubert J Materials Research Bulletin 18 (1983) 1543-1553 Crystal structure and cationic distribution of Ba Fe4 Ti2 O11 R-type hexagonal ferrite _cod_database_code 1008210 _database_code_amcsd 0016146 5.843 5.843 13.608 90 90 120 P6_3/mmc atom x y z occ Ba1 1/3 2/3 .25 Fe1 1/3 2/3 .778 .5 Fe2 0 0 .139 .55 Ti1 0 0 .139 .45 Fe3 .5 0 0 .63 Ti2 .5 0 0 .37 O1 1/3 2/3 .582 O2 .849 .698 .25 O3 .175 .350 .082