Structure of YAG Crystals Doped/Substituted with Erbium and Ytterbium
Łukasz Dobrzycki; Ewa Bulska; Dorota Anna Pawlak; Zygmunt Frukacz; Krzysztof Woźniak; Inorganic Chemistry 43 (2004) 7656–7664; doi:10.1021/ic049920z

data_4312151
_publ_section_title
;
 Structure of YAG Crystals Doped/Substituted with Erbium and Ytterbium
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7656
_journal_page_last               7664
_journal_paper_doi               10.1021/ic049920z
_journal_volume                  43
_journal_year                    2004
_chemical_formula_sum            'Al5 O12 Y0.72 Yb2.28'
_chemical_formula_weight         785.24
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           230
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  '-I 4bd 2c 3'
_symmetry_space_group_name_H-M   'I a -3 d'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.9531(14)
_cell_length_b                   11.9531(14)
_cell_length_c                   11.9531(14)
_cell_measurement_temperature    293(2)
_cell_volume                     1707.8(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0579
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       2
_diffrn_reflns_number            454
_diffrn_reflns_theta_full        40.13
_diffrn_reflns_theta_max         40.13
_diffrn_reflns_theta_min         4.18
_exptl_absorpt_coefficient_mu    30.203
_exptl_crystal_density_diffrn    6.108
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2789
_refine_diff_density_max         1.237
_refine_diff_density_min         -0.907
_refine_diff_density_rms         0.178
_refine_ls_extinction_coef       0.000508(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.433
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     18
_refine_ls_number_reflns         454
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.433
_refine_ls_R_factor_all          0.0311
_refine_ls_R_factor_gt           0.0122
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0225
_refine_ls_wR_factor_ref         0.0253
_reflns_number_gt                307
_reflns_number_total             454
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic049920zsi20040119_085908_24.cif
_cod_data_source_block           yb75
_cod_database_code               4312151