#------------------------------------------------------------------------------ #$Date: 2016-02-14 14:26:36 +0000 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: svn://www.crystallography.net/cod/cif/1/00/86/1008651.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1008651 loop_ _publ_author_name 'Collomb, A' 'Muller, J' 'Fournier, T' _publ_section_title ; Magnesium location in the barium-magnesium-iron Y-type hexagonal ferrite ; _journal_coden_ASTM MRBUAC _journal_name_full 'Materials Research Bulletin' _journal_page_first 621 _journal_page_last 627 _journal_paper_doi 10.1016/0025-5408(93)90105-M _journal_volume 28 _journal_year 1993 _chemical_formula_structural 'Ba0.99 (Mg0.705 Fe0.295) Fe6 O11' _chemical_formula_sum 'Ba0.99 Fe6.295 Mg0.705 O11' _chemical_name_systematic ; Barium magnesium iron oxide (0.99/0.7/6.3/11) ; _space_group_IT_number 166 _symmetry_cell_setting trigonal _symmetry_space_group_name_Hall '-R 3 2"' _symmetry_space_group_name_H-M 'R -3 m :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 6 _cell_length_a 5.865(1) _cell_length_b 5.865(1) _cell_length_c 43.48599(400) _cell_volume 1295.4 _refine_ls_R_factor_all 0.017 _cod_original_sg_symbol_H-M 'R -3 m H' _cod_original_formula_sum 'Ba.99 Fe6.295 Mg.705 O11' _cod_database_code 1008651 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -y,-x,z x,x-y,z y-x,y,z -x,-y,-z y,y-x,-z x-y,x,-z y,x,-z -x,y-x,-z x-y,-y,-z 1/3+x,2/3+y,2/3+z 2/3+x,1/3+y,1/3+z 1/3-y,2/3+x-y,2/3+z 2/3-y,1/3+x-y,1/3+z 1/3-x+y,2/3-x,2/3+z 2/3-x+y,1/3-x,1/3+z 1/3-y,2/3-x,2/3+z 2/3-y,1/3-x,1/3+z 1/3+x,2/3+x-y,2/3+z 2/3+x,1/3+x-y,1/3+z 1/3-x+y,2/3+y,2/3+z 2/3-x+y,1/3+y,1/3+z 1/3-x,2/3-y,2/3-z 2/3-x,1/3-y,1/3-z 1/3+y,2/3-x+y,2/3-z 2/3+y,1/3-x+y,1/3-z 1/3+x-y,2/3+x,2/3-z 2/3+x-y,1/3+x,1/3-z 1/3+y,2/3+x,2/3-z 2/3+y,1/3+x,1/3-z 1/3-x,2/3-x+y,2/3-z 2/3-x,1/3-x+y,1/3-z 1/3+x-y,2/3-y,2/3-z 2/3+x-y,1/3-y,1/3-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Ba1 0.0088(1) 0.0044(1) 0. 0.0088(1) 0. 0.0088(1) Mg1 0.0049(2) 0.0025(1) 0. 0.0049(2) 0. 0.0043(3) Fe1 0.0049(2) 0.0025(1) 0. 0.0049(2) 0. 0.0043(3) Mg2 0.0041(2) 0.0021(1) 0. 0.0041(2) 0. 0.0051(3) Fe2 0.0041(2) 0.0021(1) 0. 0.0041(2) 0. 0.0051(3) Fe3 0.0054(2) 0.0027(1) 0. 0.0054(2) 0. 0.0050(3) Mg3 0.0051(3) 0.0025(2) 0. 0.0051(3) 0. 0.0038(4) Fe4 0.0051(3) 0.0025(2) 0. 0.0051(3) 0. 0.0038(4) Mg4 0.0055(1) 0.0033(1) .0000(1) 0.0055(1) .0000(1) 0.0056(1) Fe5 0.0055(1) 0.0033(1) .0000(1) 0.0055(1) .0000(1) 0.0056(1) Mg5 0.0065(3) 0.0032(2) 0. 0.0065(3) 0. 0.0043(4) Fe6 0.0065(3) 0.0032(2) 0. 0.0065(3) 0. 0.0043(4) O1 0.0059(8) 0.0030(4) 0. 0.0059(8) 0. 0.0038(13) O2 0.0045(6) 0.0023(3) 0. 0.0045(6) 0. 0.0081(14) O3 0.0099(7) 0.0051(8) -0.0027(4) 0.0099(7) 0.0027(4) 0.0113(8) O4 0.0051(5) 0.0020(6) 0.0009(3) 0.0051(5) -0.0009(3) 0.0073(7) O5 0.0061(6) 0.0034(7) 0.0001(3) 0.0061(6) -0.0001(3) 0.0056(7) loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Ba1 Ba2+ 6 c 0. 0. 0.29985(1) 0.99(1) 0 d Mg1 Mg2+ 6 c 0. 0. 0.37646(2) 0.04(1) 0 d Fe1 Fe3+ 6 c 0. 0. 0.37646(2) 0.96(1) 0 d Mg2 Mg2+ 6 c 0. 0. 0.15225(2) 0.14(1) 0 d Fe2 Fe3+ 6 c 0. 0. 0.15225(2) 0.86(1) 0 d Fe3 Fe3+ 6 c 0. 0. 0.06558(1) 1. 0 d Mg3 Mg2+ 3 b 0. 0. 0.5 0.12(1) 0 d Fe4 Fe3+ 3 b 0. 0. 0.5 0.88(1) 0 d Mg4 Mg2+ 18 h 0.50381(4) 0.49619(4) 0.10962(1) 0.135(5) 0 d Fe5 Fe3+ 18 h 0.50381(4) 0.49619(4) 0.10962(1) 0.865(5) 0 d Mg5 Mg2+ 3 a 0. 0. 0. 0.12(1) 0 d Fe6 Fe3+ 3 a 0. 0. 0. 0.88(1) 0 d O1 O2- 6 c 0. 0. 0.41978(7) 1. 0 d O2 O2- 6 c 0. 0. 0.19632(8) 1. 0 d O3 O2- 18 h 0.15830(21) 0.84170(21) 0.02892(5) 1. 0 d O4 O2- 18 h 0.82994(18) 0.17006(18) 0.08495(4) 1. 0 d O5 O2- 18 h 0.17682(19) 0.82318(19) 0.13835(4) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Mg2+ 2.000 Fe3+ 2.960 O2- -2.000