data_global _amcsd_formula_title 'Ba Er2 Ni O5' loop_ _publ_author_name 'Alonso J' 'Amador J' 'Martinez J' 'Rasines I' 'Rodriguez-Carvajal J' 'Saez-Puche R' _journal_name_full 'Solid State Communications' _journal_volume 76 _journal_year 1990 _journal_page_first 467 _journal_page_last 474 _publ_section_title ; Neutron diffraction study of the magnetic structure of Er2BaNiO5 _cod_database_code 1006035 ; _database_code_amcsd 0015482 _chemical_formula_sum 'Er2 Ba Ni O5' _cell_length_a 3.7464 _cell_length_b 5.7289 _cell_length_c 11.2741 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 241.973 _exptl_crystal_density_diffrn 8.380 _symmetry_space_group_name_H-M 'I m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Er1 0.00000 0.00000 0.20270 Ba1 0.00000 0.50000 0.00000 Ni1 0.50000 0.00000 0.00000 O1 0.50000 0.23970 0.14860 O2 0.00000 0.00000 0.00000