#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 26/10/2020


data_5yOhtAoR
_audit_creation_date            2020-10-26
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "phys. stat. sol. (a)"
_citation_journal_volume        73
_citation_page_first            475
_citation_page_last             481
_citation_article_id            ?
_citation_year                  1982
_citation_DOI                   10.1002/pssa.2210730222

loop_
_citation_author_name
"A. Castets"
"D. Gignoux"
"J.C. Gomez-Sal"
"F. Rodriguez-Gonzalez"
"E. Roudaut"



_atomic_positions_source_database_code_ICSD  105806
_atomic_positions_source_other               .

_transition_temperature  98
_experiment_temperature  4.2

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mGM2+  1  1  .  primary  4  .
mGM3+  1  1  .  primary  4  .

_exptl_crystal_magnetic_properties_details
;
NPD
Position structure from a measurement at 120K
;

_active_magnetic_irreps_details
;
1k magnetic structure
Two 1-dim irreps active as primary irreps: two order parameters involved in the sense of Landau theory
Each independent Tb site in the parent structure order according to a different irrep.
FM on the plane xz
;

_parent_space_group.name_H-M_alt  'P n m a'
_parent_space_group.IT_number                       62
_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  11.54
_space_group_magn.name_BNS  "P 2_1'/m'"
_cell_length_a             7.14700
_cell_length_b             4.77200
_cell_length_c             8.76300
_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

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
Pt1_1 Pt 0.27400 0.25000 0.10400
Pt1_2 Pt  0.22600 0.75000 0.60400
Tb1_1 Tb 0.86800 0.25000 0.07300
Tb1_2 Tb  0.63200 0.75000 0.57300
Tb2_1 Tb 0.96800 0.25000 0.77300
Tb2_2 Tb  0.53200 0.75000 0.27300

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_1 5.2 0.00000 2.0 mx,0,mz   5.6
Tb1_2 5.2 0.00000 -2.0 mx,0,mz  5.6
Tb2_1 3.0 0.00000 4.7 mx,0,mz   5.6
Tb2_2 -3.0 0.00000 4.7 mx,0,mz  5.6


