Tunable Magnetic Exchange between Rare-Earth Metal 5d and Iron 3d States: A Case Study of the Multiple Magnetic Transitions in Gd6FeBi2 and the Solid Solutions Dy6‒xGdxFeBi2 (1 ≤ x ≤ 5) with Curie Temperatures in the Range 120‒350 K
Zhang, Jiliang; Lee, Jey-Jau; Yang, Tonghan; He, Wei; Kang, Yong-Mook; Bobev, Svilen; Chemistry of Materials  (2020) –; doi:10.1021/acs.chemmater.0c00060

data_4003485
_publ_section_title
;
 Tunable Magnetic Exchange between Rare-Earth Metal 5d and Iron 3d States:
 A Case Study of the Multiple Magnetic Transitions in Gd6FeBi2 and the
 Solid Solutions Dy6--xGdxFeBi2 (1 &#x2264; x &#x2264; 5) with Curie
 Temperatures in the Range 120--350 K
;
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/acs.chemmater.0c00060
_journal_year                    2020
_chemical_formula_sum            'Bi2 Fe Gd6'
_chemical_formula_weight         1417.31
_space_group_IT_number           189
_space_group_name_Hall           'P -6 -2'
_space_group_name_H-M_alt        'P -6 2 m'
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_H-M   'P -6 2 m'
_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                120.00
_cell_formula_units_Z            1
_cell_length_a                   8.3518(9)
_cell_length_b                   8.3518(9)
_cell_length_c                   4.2368(9)
_cell_measurement_reflns_used    354
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      30.22
_cell_measurement_theta_min      4.81
_cell_volume                     255.93(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0687
_diffrn_reflns_av_sigmaI/netI    0.0523
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            1886
_diffrn_reflns_theta_full        29.57
_diffrn_reflns_theta_max         29.57
_diffrn_reflns_theta_min         2.82
_exptl_absorpt_coefficient_mu    73.804
_exptl_absorpt_correction_T_max  0.3668
_exptl_absorpt_correction_T_min  0.2081
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            silver
_exptl_crystal_density_diffrn    9.196
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.03
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.835
_refine_diff_density_min         -1.616
_refine_diff_density_rms         0.387
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.989
_refine_ls_matrix_type           full
_refine_ls_number_parameters     14
_refine_ls_number_reflns         298
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.989
_refine_ls_R_factor_all          0.0279
_refine_ls_R_factor_gt           0.0255
_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^)+(0.0001P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0420
_refine_ls_wR_factor_ref         0.0426
_reflns_number_gt                282
_reflns_number_total             298
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm0c00060_si_001.cif
_cod_data_source_block           120K
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Hexagonal' was changed to
'hexagonal' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_sg_symbol_H-M      P-62m
_cod_database_code               4003485