Ba Ho2 Ni O5 Garcia-Matres E, Rodriguez-Carvajal J, Martinez J Solid State Communications 85 (1993) 553-559 Magnetic stucture of Ho2BaNiO5 _cod_database_code 1006064 _database_code_amcsd 0015488 3.75453 5.7319 11.2715 90 90 90 Immm atom x y z Ho1 .5 0 .2025 Ba1 .5 .5 0 Ni1 0 0 0 O1 0 .2414 .1495 O2 .5 0 0