#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 17/01/2019 20:21:49
# Cmcm_parent_paper.cif

data_5yOhtAoR
_audit_creation_date            2019-01-17
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "PHYSICAL REVIEW MATERIALS"
_citation_journal_volume        2
_citation_page_first            ?
_citation_page_last             ?
_citation_article_id            084406
_citation_year                  2018
_citation_DOI                   10.1103/PhysRevMaterials.2.084406

loop_
_citation_author_name
"D. I. Gorbunov"
"M. S. Henriques"
"N. Qureshi"
"B. Ouladdiaf"
"C. Salazar Mejia"
"J. Gronemann"
"A. V. Andreev"
"V. Petricek"
"E. L. Green"
"J. Wosnitza"

_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .


_transition_temperature  3.7
_experiment_temperature  1.5

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mZ1  2  2  special  primary 3  .

_exptl_crystal_magnetic_properties_details
;
NSD
Between 6.1K and 5.2K and between 5.2K and 3.7K two different incommensurate phases are reported (see #1.1.48 and #1.1.49)
Position structure has been taken from the reported Cmcm parent structure at 65K. 
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry (4 possible)
2-dim irrep active along a special direction
The Dy parent site splits into two symmetry independent sites, which have very different magnetic moments.
;

_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 [0 0 1/2]

_parent_space_group.child_transform_Pp_abc  'a,b,2c;0,0,0'
_space_group_magn.transform_BNS_Pp_abc  'c,a,b;0,0,7/8'



_space_group_magn.number_BNS  38.192
_space_group_magn.name_BNS  "A_a m m 2"
_cell_length_a             12.72390
_cell_length_b             7.45860
_cell_length_c             18.59880
_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,-z+3/4,+1 
3 x,y,-z+3/4,+1 
4 -x,y,z,+1 

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

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Dy1_1 Dy 0.33940 0.33290 0.12500
Dy1_2 Dy  0.66060 0.66710 0.37500
Co1 Co 0.32880 0.00000 0.00000
Co2 Co 0.00000 0.00000 0.00000
Al1_1 Al 0.00000 0.12490 0.12500
Al1_2 Al  0.00000 0.87510 0.37500
Al2_1 Al 0.10790 0.44590 0.12500
Al2_2 Al  0.89210 0.55410 0.37500
Al3_1 Al 0.00000 0.33220 0.27140
Al3_2 Al  0.00000 0.66780 0.52140
Al4_1 Al 0.16860 0.33300 0.03585
Al4_2 Al  0.83140 0.66700 0.28585

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_1 1.34(2) 8.35(2) 0.00000 mx,my,0
Dy1_2 0.00000 0.00000 1.38(1) 0,0,mz

