#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 27/03/2021 

data_5yOhtAoR
_audit_creation_date            2021-03-27
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "Solid State Communications"
_citation_journal_volume        97
_citation_page_first            503
_citation_page_last             507
_citation_article_id            ?
_citation_year                  1996
_citation_DOI                   10.1016/0038-1098(95)00693-1

loop_
_citation_author_name
"R. Welter"
"G. Venturini"
"E. Ressouche"
"B. Malamana"

_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature  420
_experiment_temperature  300

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  .

_exptl_crystal_magnetic_properties_details
;
NPD
The orientation of the moment component on the basal plane is undetermined. Here a direction of maximal symmetry has been chosen.
;

_active_magnetic_irreps_details
;
1k magnetic structure
Two irreps as primary: this means that two order parameters in the sense of Landau theory are involved.
;

_parent_space_group.name_H-M_alt  'P 4/n m m'
_parent_space_group.IT_number                       129
_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  'a,b,c;0,0,0'



_space_group_magn.number_BNS  11.53
_space_group_magn.name_BNS  "P 2_1/m'"
_cell_length_a             4.242(3)
_cell_length_b             4.242
_cell_length_c             7.23(I)
_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+1/2,-z,+1 
3 -x,-y,-z,-1 
4 x,-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
Mn1 Mn 0.25000 0.75000 0.00000
Ca1 Ca 0.25000 0.25000 0.684(2)
Ge1 Ge 0.25000 0.25000 0.231(2)

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
Mn1 -1.07 0.00000 2.18 mx,0,mz 2.43(5)

