#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 13/04/2020 


data_5yOhtAoR
_audit_creation_date            2020-04-13
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "Journal of Magnetism and Magnetic Materials"
_citation_journal_volume        154
_citation_page_first            29
_citation_page_last             36
_citation_article_id            ?
_citation_year                  1996
_citation_DOI                   10.1016/0304-8853(95)00578-1

loop_
_citation_author_name
"P. Schobinger-Papamantellos"
"T. Janssen"
"K.H.J. Buschow"

_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature  24
_experiment_temperature  8

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mD1 4  1  special  primary  3  .
mS2- 2  1   .      secondary 1 yes

_exptl_crystal_magnetic_properties_details
;
NPD
The propagation vectors with respect to the Cmcm parent structure which are really active in this reported structure are (1/2,-1/2,1/3) and (1/2,-1/2,0). This is inconsistent with the propagation vectors being reported as observed: (1/2,0,1/3) and (1/2,0,0). This means that the structure is most probably wrong.
The position structure includes some structural distortion with respect to the parent Cmcm structure.
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry (4 possible)
2-dim extended (k,-k) small irrep along a special direction as primary. The irrep has 4 k-vectors. Those active are (1/2,-1/2,1/3) and its opposite (-1/2,1/2,-1/3)
A secondary 1-dim (small) irrep with wavevector (1/2,-1/2,0), corresponding to a third harmonic, is aymmetry allowed and is present.
Domain equivalent congigurations have as propagation vectors the symmetry related k-vectors in the irrep star.
;

_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 -1/2 1/3]

_parent_space_group.child_transform_Pp_abc  '2a,1/2a+1/2b,3c;0,0,0'
_space_group_magn.transform_BNS_Pp_abc  'a,-c,b;1/4,0,0'



_space_group_magn.number_BNS  11.55
_space_group_magn.name_BNS  "P_a 2_1/m"
_cell_length_a             8.0584
_cell_length_b             10.5484
_cell_length_c             11.6902
_cell_angle_alpha          90.00
_cell_angle_beta           90.00
_cell_angle_gamma          79.047

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

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Dy1 Dy 0.785(0) 0.831(1) 0.083
Dy2 Dy 0.712(2) 0.158(2) 0.25
Ge1 Ge 0.983(8) 0.079(4) 0.083
Ge2 Ge 0.509(11) 0.916(9) 0.25
Ge3 Ge 0.627(5) 0.388(3) 0.083
Ge4 Ge 0.857(15) 0.621(6) 0.25
Ge5 Ge 0.593(6) 0.615(3) 0.083
Ge6 Ge 0.935(7) 0.368(5) 0.25

loop_
_atom_site_moment.label
_atom_site_moment.crystalaxis_x
_atom_site_moment.crystalaxis_y
_atom_site_moment.crystalaxis_z
_atom_site_moment.symmform
Dy1 0.0 0.0 8.2(5) mx,my,mz
Dy2 0.0 0.0 -8.1(5) 0,0,mz

