#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1008159.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_1008159 _chemical_name_systematic 'Erbium chromium oxide' _chemical_formula_structural 'Er Cr O3' _chemical_formula_sum 'Cr Er O3' _publ_section_title ; Etude de la Structure Magnetique des Chromites d'Erbium et de Neodyme par Diffraction Neutronique ; loop_ _publ_author_name 'Bertaut, E F' 'Mareschal, J' _journal_name_full 'Solid State Communications' _journal_coden_ASTM SSCOA4 _journal_volume 5 _journal_year 1967 _journal_page_first 93 _journal_page_last 97 _cell_length_a 5.223 _cell_length_b 5.516 _cell_length_c 7.519 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 216.6 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'P b n m' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2-x,1/2+y,1/2-z' '-x,-y,1/2+z' '1/2+x,1/2-y,-z' '-x,-y,-z' '1/2+x,1/2-y,1/2+z' 'x,y,1/2-z' '1/2-x,1/2+y,z' loop_ _atom_type_symbol _atom_type_oxidation_number Er3+ 3.000 Cr3+ 3.000 O2- -2.000 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 Er1 Er3+ 4 c -0.017 0.069 0.25 1. 0 d Cr1 Cr3+ 4 b 0.5 0. 0. 1. 0 d O1 O2- 4 c 0.109 0.463 0.25 1. 0 d O2 O2- 8 d -0.308 0.298 0.05 1. 0 d