#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 03/29/2026

data_5yOhtAoR
_audit_creation_date            2026-03-29
_audit_creation_method          "Bilbao Crystallographic Server"

_chemical_name_systematic
;
;
_chemical_name_common                    ?
_chemical_formula_moiety                 ?
_chemical_formula_structural             ?
_chemical_formula_analytical             ?
_chemical_formula_iupac                  ?
_chemical_formula_sum                    "Ho1 B4"
_chemical_formula_weight                 ?
_chemical_melting_point                  ?
_chemical_compound_source                ?
_chemical_absolute_configuration         ?


_citation_journal_abbrev        "Journal of the Physical Society of Japan"
_citation_journal_volume        77
_citation_page_first            .
_citation_page_last             .
_citation_article_id            044709
_citation_year                  2008
_citation_DOI                   10.1143/JPSJ.77.044709

loop_
_citation_author_name
"Daisuke OKUYAMA"
"Takeshi MATSUMURA"
"Takuya MOURI"
"Naoko ISHIKAWA1"
"Kenji OHOYAMA"
"Haruhiro HIRAKA"
"Hironori NAKAO"
"Kazuaki IWASA1"
"Youichi MURAKAMI"

_temperature_position_structure         300
_temperature_atom_positions             .
_temperature_non-magn_atom_positions    .
_temperature_cell_parameters            .

_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature     5.7
_experiment_temperature     2.6

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mGM2- 1 1 . primary 1 .
mGM5- 2 2 special primary 1 .
mGM1- 1 1 . secondary 1 no

_exptl_crystal_magnetic_properties_details
;
NPD
Positional structure from a determination at 300K
Between 7.1K and 5.7 an incommensurate structure is reported
The relative sign between the xy and the z components of the Ho1 spin is arbitrary, as its change corresponds to two equivalent domains.
;

_active_magnetic_irreps_details
;
1k magnetic structure
two primary irreps
A secondary irrep is symmetry allowed by the MSG, but not present
;

_parent_space_group.name_H-M_alt  'P 4/m b m'
_parent_space_group.IT_number                       127
_parent_space_group.transform_Pp_abc  'a,b,c;0,0,0'

loop_
_parent_propagation_vector.id
_parent_propagation_vector.kxkykz
k1 [0 0 0]

_parent_space_group.child_transform_Pp_abc  'a,b,c;0,0,0'
_space_group_magn.transform_BNS_Pp_abc  '-c,-a,b;0,0,0'


_space_group_magn.number_BNS  14.78
_space_group_magn.name_BNS  "P 2_1/c'"
_space_group_magn.point_group_name  "2/m'"
_space_group_magn.point_group_number  "5.4.15"
_cell_length_a                 7.08080
_cell_length_b                 7.08080
_cell_length_c                 4.00470
_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+1/2,-y+1/2,-z,+1 
3 -x,-y,-z,-1 
4 -x+1/2,y+1/2,z,-1 

loop_
_space_group_symop_magn_centering.id
_space_group_symop_magn_centering.xyz
1 x,y,z,+1 

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ho1 Ho 0.31860 0.81860 0.00000 1
B1 B 0.00000 0.00000 0.20190 1
B2 B 0.08720 0.58720 0.50000 1
B3_1 B 0.17700 0.03910 0.50000 1
B3_2 B 0.96090 0.17700 0.50000 1

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
_atom_site_moment.spherical_azimuthal
_atom_site_moment.spherical_polar
Ho1 5.92 -5.92 5.53 mx,my,mz 8.1 ? ?

