#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 31/10/2020


data_5yOhtAoR
_audit_creation_date            2020-10-31
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "Z. Physik B - Condensed Matter"
_citation_journal_volume        39
_citation_page_first            305
_citation_page_last             310
_citation_article_id            ?
_citation_year                  1980
_citation_DOI                   10.1007/BF01305829

loop_
_citation_author_name
"W. N�gele"
"D. Hohlwein"
"G. Domann"



_atomic_positions_source_database_code_ICSD  35704
_atomic_positions_source_other               .

_transition_temperature  2.28
_experiment_temperature  ?

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

_exptl_crystal_magnetic_properties_details
;
NPD
Position structure from a model at room temperature retrieved from the ICSD
Below 2.15K the Tb moments tilt with respect to the c axis and a monoclinic distortion is observed.
The value of the Tb moment is unknown. An arbitrary magnitude is used here.
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry
1-dim irrep as primary
;

_parent_space_group.name_H-M_alt  'I 4_1/a m d'
_parent_space_group.IT_number                       141
_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  141.556
_space_group_magn.name_BNS  "I 4_1'/a' m' d"
_cell_length_a             6.94000
_cell_length_b             6.94000
_cell_length_c             6.06800
_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,+1
3 -x,y+1/2,-z,+1
4 -x,-y+1/2,z,+1
5 y+3/4,-x+1/4,-z+3/4,+1
6 -y+1/4,x+1/4,-z+3/4,+1
7 -y+1/4,-x+3/4,z+1/4,+1
8 y+3/4,x+3/4,z+1/4,+1
9 -y+1/4,x+3/4,z+1/4,-1
10 y+3/4,-x+3/4,z+1/4,-1
11 y+3/4,x+1/4,-z+3/4,-1
12 -y+1/4,-x+1/4,-z+3/4,-1
13 -x,-y,-z,-1
14 -x,y,z,-1
15 x,-y+1/2,z,-1
16 x,y+1/2,-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+1/2,+1

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Tb1 Tb 0.00000 0.75000 0.12500
P1 P 0.00000 0.25000 0.37500
O1 O 0.00000 0.42380 0.22180

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
Tb1 0.00000 0.00000 1.00000 0,0,mz ?


