data_global _amcsd_formula_title 'Au Ba2 Ca0.3 Cu2 O7 Y0.7' loop_ _publ_author_name 'Bordet P' 'LeFloch S' 'Chaillout C' 'Duc F' 'Gorius M' 'Perroux M' 'Capponi J' 'Toulemonde P' 'Tholence J' _journal_name_full 'Physica C' _journal_volume 276 _journal_year 1997 _journal_page_first 237 _journal_page_last 244 _publ_section_title ; Au Ba2 (Y(1-x) Ca(x)) Cu2 O7: a new superconducting gold cuprate with Tc above 80 K _cod_database_code 1008814 ; _database_code_amcsd 0016684 _chemical_formula_sum 'Au Ba2 (Y.7 Ca.3) Cu2 O7' _cell_length_a 3.8298 _cell_length_b 3.8420 _cell_length_c 12.111 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 178.202 _exptl_crystal_density_diffrn 7.315 _symmetry_space_group_name_H-M 'P m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' '-x,y,-z' '-x,y,z' 'x,-y,-z' 'x,y,-z' '-x,-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Au1 0.00000 0.00000 0.00000 1.00000 Ba1 0.50000 0.50000 0.19900 1.00000 Y1 0.50000 0.50000 0.50000 0.70000 Ca1 0.50000 0.50000 0.50000 0.30000 Cu1 0.00000 0.00000 0.36300 1.00000 O1 0.00000 0.00000 0.15300 1.00000 O2 0.50000 0.00000 0.39000 1.00000 O3 0.00000 0.50000 0.38000 1.00000 O4 0.19000 0.50000 0.00000 0.50000