#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 02/05/2020

data_5yOhtAoR
_audit_creation_date            2020-05-02
_audit_creation_method          "Bilbao Crystallographic Server"

data_5yOhtAoR
_audit_creation_date            2020-05-01
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "Journal of Magnetism and Magnetic Materials"
_citation_journal_volume        127
_citation_page_first            83
_citation_page_last             92
_citation_article_id            ?
_citation_year                  1993
_citation_DOI                   10.1016/0304-8853(93)90200-L

loop_
_citation_author_name
"G. Andre"
"F. Bouree"
"A. Bombik"
"A. Oles"
"W. Sikora"
"M. Kolenda"
"A. Szytula"



_atomic_positions_source_database_code_ICSD  57251
_atomic_positions_source_other               .

_transition_temperature  2.9
_experiment_temperature  1.65

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mY1  2  2  special primary  3  .

_exptl_crystal_magnetic_properties_details
;
NPD
Position structure from a determination at 8K
Above around 2.3K (up to T_N) an incommensurate sinusoidal phase  coexists.
Ce moment: 9.05(5)
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry (4 possible)
2-dim irrep along a special direction as primary
;

_parent_space_group.name_H-M_alt  'P n m a'
_parent_space_group.IT_number                       62
_parent_space_group.transform_Pp_abc  'a,b,c;0,0,0'

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

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



_space_group_magn.number_BNS  14.80
_space_group_magn.name_BNS  "P_a 2_1/c"
_cell_length_a             6.801
_cell_length_b             8.376
_cell_length_c             7.243
_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+1/2,+1
3 -x,-y,-z,+1
4 x+1/2,y+1/2,-z+1/2,+1

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

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Er1 Er 0.00000 0.12500 0.70480
Ni1 Ni 0.19350 0.12500 0.09830
Ge1 Ge 0.30650 0.12500 0.40170

loop_
_atom_site_moment.label
_atom_site_moment.crystalaxis_x
_atom_site_moment.crystalaxis_y
_atom_site_moment.crystalaxis_z
_atom_site_moment.symmform
Er1 3.82 8.20 0.00000 mx,my,mz



