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


data_5yOhtAoR
_audit_creation_date            2018-09-29
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "J. Phys.: Condens. Matter"
_citation_journal_volume        2
_citation_page_first            9409
_citation_page_last             9422
_citation_article_id            ?
_citation_year                  1990
_citation_DOI                   10.1088/0953-8984/2/47/015

loop_
_citation_author_name
"P.J. Brown"
"V. Nunez"
"F. Tasset"
"J.B. Forsyth"
"P. Radhakrishna"




_atomic_positions_source_database_code_ICSD  643730
_atomic_positions_source_other               .

_transition_temperature  420
_experiment_temperature  200


loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mGM6+  2  2  special  primary  2  .
mGM4+  1  1   .   secondary    1  no

_exptl_crystal_magnetic_properties_details
;
polarized NSD
;

_active_magnetic_irreps_details
;
1k structure
2-dim irrep active along special direction.
Secondary weak FM along the (2,1,0) direction (and domain related equivalent ones) is symmetry allowed. Weak FM has been detected in macroscopic measurements.
This structure is one of the two possible models proposed in the article. It corresponds to a special direction within the space of the active irrep (mGM6+). The other model (see #0.199), which results undistinguishable, is realized when considering the second possible non-equivalent special direction for the same active irrep.
;

_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  '-b,2a+b,c;0,0,0'



_space_group_magn.number_BNS  63.464
_space_group_magn.name_BNS  "C m' c m'"
_cell_length_a             5.66500
_cell_length_b             5.66500
_cell_length_c             4.53100
_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,x-y,-z+1/2,+1
3 -x,-y,-z,+1
4 -x,-x+y,z+1/2,+1
5 -x,-x+y,-z,-1
6 -x,-y,z+1/2,-1
7 x,x-y,z,-1
8 x,y,-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
Mn1_1 Mn 0.83880 0.67760 0.25000
Mn1_2 Mn  0.32240 0.16120 0.25000
Sn1 Sn 0.333333 0.666667 0.25000

loop_
_atom_site_moment.label
_atom_site_moment.crystalaxis_x
_atom_site_moment.crystalaxis_y
_atom_site_moment.crystalaxis_z
_atom_site_moment.symmform
Mn1_1 -1.73 1.73 0.00000 mx,my,0
Mn1_2 3.46 1.73 0.00000 2my,my,0

