#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 20/10/2020

data_5yOhtAoR
_audit_creation_date            2020-10-20
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "PHYSICAL REVIEW MATERIALS"
_citation_journal_volume        4
_citation_page_first            ?
_citation_page_last             ?
_citation_article_id            104407
_citation_year                  2020
_citation_DOI                   10.1103/PhysRevMaterials.4.104407

loop_
_citation_author_name
"X. Miao"
"Y. Gong"
"L. Caron"
"Y. You"
"G. Xu"
"D. Sheptyakov"
"P. Manuel"
"F. Qian"
"Y. Zhang"
"F. Xu"
"N. van Dijk"
"E. Bruck"



_atomic_positions_source_database_code_ICSD  623486
_atomic_positions_source_other               .

_transition_temperature  260
_experiment_temperature  75K

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mGM2+  1  1  .  primary  2  .

_exptl_crystal_magnetic_properties_details
;
NPD
Two magnetic transitions are detected. One at 260K where the moments are aligned along c (parent hexagonal setting) with only irrep mGM2+ active, and a second one at 75K, where the Mn moment adquires an additional component on the hexagonal basal plane.
FM along c
Unit cell parameters are not reported. Here those of a model at room temperature retrieved from the ICSD (623486) is used.
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry (3 possible)
1-dim irrep as primary
;

_parent_space_group.name_H-M_alt  'P 6_3/m m c'
_parent_space_group.IT_number                       194
_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  194.270
_space_group_magn.name_BNS  "P 6_3/m m' c'"
_cell_length_a             4.06700
_cell_length_b             4.06700
_cell_length_c             5.28400
_cell_angle_alpha          90.00
_cell_angle_beta           90.00
_cell_angle_gamma          120.00

loop_
_space_group_symop_magn_operation.id
_space_group_symop_magn_operation.xyz
1 x,y,z,+1
2 x-y,x,z+1/2,+1
3 -y,x-y,z,+1
4 -x,-y,z+1/2,+1
5 -x+y,-x,z,+1
6 y,-x+y,z+1/2,+1
7 -x,-y,-z,+1
8 -x+y,-x,-z+1/2,+1
9 y,-x+y,-z,+1
10 x,y,-z+1/2,+1
11 x-y,x,-z,+1
12 -y,x-y,-z+1/2,+1
13 x-y,-y,-z,-1
14 y,x,-z,-1
15 -x,-x+y,-z,-1
16 x,x-y,-z+1/2,-1
17 -x+y,y,-z+1/2,-1
18 -y,-x,-z+1/2,-1
19 -x+y,y,z,-1
20 -y,-x,z,-1
21 x,x-y,z,-1
22 -x,-x+y,z+1/2,-1
23 x-y,-y,z+1/2,-1
24 y,x,z+1/2,-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
Ge1 Ge 0.33333 0.66667 0.25000
Mn1 Mn 0.00000 0.00000 0.00000
Co1 Co 0.33333 0.66667 0.75000

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 0.00000 0.00000 2.01(2) 0,0,mz 2.01(2)
Co1 0.00000 0.00000 0.72(4) 0,0,mz 0.72(4)

