data_1001586
_chemical_name_systematic
;
Yttrium calcium barium copper cobalt oxide (0.9/0.1/2/2.9/0.1/6.96)
;
_chemical_formula_structural
;
(Y0.86 Ca0.14) Ba2 Cu2 (Cu0.88 Co0.12) O6.96
;
_chemical_formula_sum              'Ba2 Ca.14 Co.12 Cu2.88 O6.96 Y.86'
_publ_section_title
;
Influence of thermal treatment on Y~1-x~Ca~x~Ba~2~Cu~3-x~Co~x~O~7~. A
neutron diffraction study
;
loop_
_publ_author_name
  'Suard, E'
  'Caignaert, V'
  'Maignan, A'
  'Bouree, F'
  'Raveau, B'
_journal_name_full                 'Physica C (Amsterdam) (152,1988-)'
_journal_coden_ASTM                PHYCE6
_journal_volume                    210
_journal_year                      1993
_journal_page_first                164
_journal_page_last                 172
_cell_length_a                     3.8618(1)
_cell_length_b                     3.8618(1)
_cell_length_c                     11.6910(3)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       174.4
_cell_formula_units_Z              1
_symmetry_space_group_name_H-M     'P 4/m m m'
_symmetry_Int_Tables_number        123
_symmetry_cell_setting             tetragonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,z'
  '-x,y,z'
  'x,-y,z'
  '-y,x,z'
  'y,-x,z'
  'y,x,z'
  '-y,-x,z'
  '-x,-y,-z'
  'x,y,-z'
  'x,-y,-z'
  '-x,y,-z'
  'y,-x,-z'
  '-y,x,-z'
  '-y,-x,-z'
  'y,x,-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Y3+    3.000
  Ca2+   2.000
  Ba2+   2.000
  Cu2+   2.370
  Co2+   2.000
  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
  Y1    Y3+    1 d 0.5 0.5 0.5 0.86(2)  0 d
  Ca1   Ca2+   1 d 0.5 0.5 0.5 0.14(2)  0 d
  Ba1   Ba2+   2 h 0.5 0.5 0.1872(2) 1.  0 d
  Cu1   Cu2+   1 a 0. 0. 0. 0.88  0 d
  Co1   Co2+   1 a 0. 0. 0. 0.12  0 d
  Cu2   Cu2+   2 g 0. 0. 0.3575(1) 1.  0 d
  O1    O2-    4 i 0. 0.5 0.3770(1) 1.  0 d
  O2    O2-    2 g 0. 0. 0.1562(2) 1.  0 d
  O3    O2-    4 n 0.046(3) 0.5 0. 0.240(5)  0 d
_refine_ls_R_factor_all            0.021