Magnetism and Negative Magnetoresistance of Two Magnetically Ordering, Rare-Earth-Containing Zintl phases with a New Structure Type: EuGa2Pn2(Pn = P, As)
Goforth, Andrea M.; Hope, Håkon; Condron, Cathie L.; Kauzlarich, Susan M.; Jensen, Newell; Klavins, Peter; MaQuilon, Samuel; Fisk, Zachary; Chemistry of Materials 21 (2009) 4480–; doi:10.1021/cm901219u

data_4001040
_publ_section_title
;
 Magnetism and Negative Magnetoresistance of Two Magnetically Ordering,
 Rare-Earth-Containing Zintl phases with a New Structure Type: EuGa2Pn2(Pn
 = P, As)
;
_journal_issue                   19
_journal_name_full               'Chemistry of Materials'
_journal_page_first              4480
_journal_paper_doi               10.1021/cm901219u
_journal_volume                  21
_journal_year                    2009
_chemical_formula_sum            'Eu Ga2 P2'
_chemical_formula_weight         353.34
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           10
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2y'
_symmetry_space_group_name_H-M   'P 1 2/m 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.5220(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.2822(9)
_cell_length_b                   3.8967(4)
_cell_length_c                   12.0777(11)
_cell_measurement_temperature    100(1)
_cell_volume                     434.82(7)
_computing_cell_refinement       'Bruker Apex2'
_computing_data_collection       'Bruker Apex2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(1)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART APEX2'
_diffrn_measurement_method       \w
_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  0.0267
_diffrn_reflns_av_sigmaI/netI    0.0175
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6586
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.65
_exptl_absorpt_coefficient_mu    27.064
_exptl_absorpt_correction_T_max  0.34
_exptl_absorpt_correction_T_min  0.09
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (multi-scan)'
_exptl_crystal_colour            'metallic silver'
_exptl_crystal_density_diffrn    5.398
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelpiped
_exptl_crystal_F_000             620
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.145
_refine_diff_density_min         -0.839
_refine_diff_density_rms         0.198
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.197
_refine_ls_matrix_type           full
_refine_ls_number_parameters     66
_refine_ls_number_reflns         1134
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.197
_refine_ls_R_factor_all          0.0159
_refine_ls_R_factor_gt           0.0148
_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^)+(0.0130P)^2^+0.3900P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0325
_refine_ls_wR_factor_ref         0.0327
_reflns_number_gt                1096
_reflns_number_total             1134
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm901219u_si_001.cif
_cod_data_source_block           hh461p
_cod_database_code               4001040