#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 27/10/2020

data_5yOhtAoR
_audit_creation_date            2020-10-27
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "Journal of Magnetism and Magnetic Materials"
_citation_journal_volume        323
_citation_page_first            2592
_citation_page_last             2607
_citation_article_id            ?
_citation_year                  2011
_citation_DOI                   10.1016/j.jmmm.2011.05.044

loop_
_citation_author_name
"P. Schobinger-Papamantellos"
"K. Buschow"
"J. Rodriguez-Carvajal"



_atomic_positions_source_database_code_ICSD  182226
_atomic_positions_source_other               .

_transition_temperature  16.5
_experiment_temperature  2.7

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mA1  4  2  special  primary  3  .

_exptl_crystal_magnetic_properties_details
;
NPD
Dimorphic compound with two different paramagnetic symmetries.
Between 16.5K and 25K an incommensurate magnetic phase is reported
;

_active_magnetic_irreps_details
;
1K magnetic structure
k-maximal magnetic symmetry
4-dim irrep along a special direction as primary
;

_parent_space_group.name_H-M_alt  'C m c m'
_parent_space_group.IT_number                       63
_parent_space_group.transform_Pp_abc  'a,b,c;0,0,0'

loop_
_parent_propagation_vector.id
_parent_propagation_vector.kxkykz
k1 [1/2 0 1/2]

_parent_space_group.child_transform_Pp_abc  '2a,b,2c;0,0,0'
_space_group_magn.transform_BNS_Pp_abc  'c,a,b;1/8,1/4,0'



_space_group_magn.number_BNS  15.91
_space_group_magn.name_BNS  "C_a 2/c"
_cell_length_a             8.45800
_cell_length_b             10.42600
_cell_length_c             7.59000
_cell_angle_alpha          90.00
_cell_angle_beta           90.00
_cell_angle_gamma          90.00

loop_
_space_group_symop_magn_operation.id
_space_group_symop_magn_operation.xyz
1 x,y,z,+1
2 x,-y,-z,+1
3 -x+1/4,-y+1/2,-z,+1
4 -x+1/4,y+1/2,z,+1

loop_
_space_group_symop_magn_centering.id
_space_group_symop_magn_centering.xyz
1 x,y,z,+1
2 x+1/2,y,z+1/2,+1
3 x,y,z+1/2,-1
4 x+1/2,y,z,-1

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ho1 Ho 0.00000 0.13800 0.12500
Si1 Si 0.00000 0.43100 0.12500

loop_
_atom_site_moment.label
_atom_site_moment.crystalaxis_x
_atom_site_moment.crystalaxis_y
_atom_site_moment.crystalaxis_z
_atom_site_moment.symmform
_atom_site_moment.magnitude
Ho1 0.00000 0.00000 8.6(2) mx,my,mz  8.6(2)

