Magnetization pole reversal of ferrimagnetic ludwigites Mn3-xNixBO5
L.N. Bezmaternykh; E.M. Kolesnikova; E.V. Eremin; S.N. Sofronova; N.V. Volkov; M.S. Molokeev; Journal of Magnetism and Magnetic Materials 364 (2014) 55–59; doi:10.1016/j.jmmm.2014.04.031

data_1529380
_publ_section_title
;
 Magnetization pole reversal of ferrimagnetic ludwigites Mn3-xNixBO5
;
_journal_issue                   0
_journal_name_full               'Journal of Magnetism and Magnetic Materials'
_journal_page_first              55
_journal_page_last               59
_journal_paper_doi               10.1016/j.jmmm.2014.04.031
_journal_volume                  364
_journal_year                    2014
_chemical_formula_sum            'B2 Mn5 Ni O10'
_chemical_formula_weight         515.03
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           55
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2 2ab'
_symmetry_space_group_name_H-M   'P b a m'
_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            1
_cell_length_a                   9.1790(17)
_cell_length_b                   12.344(2)
_cell_length_c                   3.0010(6)
_cell_measurement_temperature    296(2)
_cell_volume                     340.03(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.970
_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  0.0409
_diffrn_reflns_av_sigmaI/netI    0.0308
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            3107
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.64
_diffrn_reflns_theta_min         2.77
_exptl_absorpt_coefficient_mu    5.884
_exptl_crystal_density_diffrn    2.515
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             243
_refine_diff_density_max         1.768
_refine_diff_density_min         -1.495
_refine_diff_density_rms         0.386
_refine_ls_extinction_coef       0.098(8)
_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   1.007
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     55
_refine_ls_number_reflns         546
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0400
_refine_ls_R_factor_gt           0.0381
_refine_ls_shift/su_max          0.070
_refine_ls_shift/su_mean         0.015
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0744P)^2^+2.6319P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1090
_refine_ls_wR_factor_ref         0.1112
_reflns_number_gt                514
_reflns_number_total             546
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            Mn2p5Ni0p5BO5.cif
_cod_data_source_block           b
_cod_original_cell_volume        340.02(11)
_cod_original_sg_symbol_H-M      Pbam
_cod_database_code               1529380
_cod_database_fobs_code          1529380