data_global _amcsd_formula_title 'EuFe2As2' loop_ _publ_author_name 'Tegel M' 'Rotter M' 'Weiss V' 'Schappacher F M' 'Pottgen R' 'Johrendt D' _journal_name_full 'Journal of Physics: Condensed Matter' _journal_volume 20 _journal_year 2008 _journal_page_first 452201_1 _journal_page_last 452201_5 _publ_section_title ; Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2 Note: T = 297 K ; _database_code_amcsd 0018358 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Eu Fe2 As2' _cell_length_a 3.9062 _cell_length_b 3.9062 _cell_length_c 12.1247 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 185.003 _exptl_crystal_density_diffrn 7.423 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,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' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,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 _atom_site_U_iso_or_equiv Eu 0.00000 0.00000 0.00000 0.01230 Fe 0.50000 0.00000 0.25000 0.00910 As 0.00000 0.00000 0.36250 0.00960