#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 07/25/2020

data_5yOhtAoR
_audit_creation_date            2020-07-25
_audit_creation_method          "Bilbao Crystallographic Server"

_citation_journal_abbrev        "PHYSICAL REVIEW B"
_citation_journal_volume        101
_citation_page_first            ?
_citation_page_last             ?
_citation_article_id            235109
_citation_year                  2020
_citation_DOI                   10.1103/PhysRevB.101.235109

loop_
_citation_author_name
"C.V. Colin"
"L. Ding"
"E. Ressouche"
"J. Robert"
"N. Terada"
"F. Gay"
"P. Lejay"
"V. Simonet"
"C. Darie"
"P. Bordet"
"S. Petit"




_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature     4.36
_experiment_temperature     4.1

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
mLD2 2 1 . primary 4 .

_exptl_crystal_magnetic_properties_details
;
NSD
Below 4.05K a second magnetic phase with a cycloidal modulation is also reported (see #1.1.90)
Non-polar structure
;

_active_magnetic_irreps_details
;
1k incommensurate magnetic structure
1-dim small irrep as primary.
The active irrep yields a single possible superspace group (MSSG)
The model was a priori constrained to be collinear, which reduces the number of free parameters from 4 to 3
Here the magnetic superspace group (MSSG) of the structure is used maintaining the setting of the parent paramagnetic structure, and its label is made consistent with the setting used.
In order to describe the structure under its MSSG symmetry, the phase parameters reported in the original reference have been transformed.
The phase of the Mn1 modulation has been chosen to be consistent with the inversion operation of the MSSG description
;

_parent_space_group.name_H-M_alt  "C 2/c"
_parent_space_group.IT_number             15
_parent_space_group.transform_Pp_abc  "a,b,c;0,0,0"

_cell_modulation_dimension               1

loop_
_cell_wave_vector_seq_id
_cell_wave_vector_x
_cell_wave_vector_y
_cell_wave_vector_z
1 0.000000 0.381000 0.000000


_parent_space_group.child_transform_Pp_abc  "a,b,c;0,0,0"

_space_group.magn_ssg_name  "C2/c1'(0b0)s0s"
_space_group.magn_point_group_name  "2/m1'"
_space_group.magn_point_group_number  5.2.13
_cell_length_a                 10.3559
_cell_length_b                 9.3903
_cell_length_c                 5.5133
_cell_angle_alpha              90
_cell_angle_beta               104.651
_cell_angle_gamma              90

loop_
_space_group_symop_magn_ssg_operation.id
_space_group_symop_magn_ssg_operation.algebraic
1 x1,x2,x3,x4,+1
2 -x1,x2,-x3+1/2,x4+1/2,+1
3 -x1,-x2,-x3,-x4,+1
4 x1,-x2,x3+1/2,-x4+1/2,+1

loop_
_space_group_symop_magn_ssg_centering.id
_space_group_symop_magn_ssg_centering.algebraic
1 x1,x2,x3,x4,+1
2 x1+1/2,x2+1/2,x3,x4,+1
3 x1,x2,x3,x4+1/2,-1
4 x1+1/2,x2+1/2,x3,x4+1/2,-1

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Sr1 Sr 0 0.3085 0.25 1
Mn1 Mn 0 0.9076 0.25 1
Ge1 Ge 0.28244 0.09546 0.2193 1
O1 O 0.11107 0.0874 0.1396 1
O2 O 0.3578 0.2547 0.3181 1
O3 O 0.35351 0.0218 0.9812 1


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 0 0 0 0,0,0

loop_
_atom_site_Fourier_wave_vector.seq_id
_atom_site_Fourier_wave_vector.q1_coeff
1 1

loop_
_atom_site_moment_Fourier.atom_site_label
_atom_site_moment_Fourier.axis
_atom_site_moment_Fourier.wave_vector_seq_id
_atom_site_moment_Fourier_param.cos
_atom_site_moment_Fourier_param.sin
_atom_site_moment_Fourier_param.cos_symmform
_atom_site_moment_Fourier_param.sin_symmform
Mn1 x 1 -0.124 2.019 mxc1 mxs1
Mn1 y 1     0   0    0    0
Mn1 z 1 -0.039 0.642 mzc1 mzs1

