#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 04/02/2026

data_5yOhtAoR
_audit_creation_date            2026-04-02
_audit_creation_method          "Bilbao Crystallographic Server"

_chemical_name_systematic
;
;
_chemical_name_common                    ?
_chemical_formula_moiety                 ?
_chemical_formula_structural             ?
_chemical_formula_analytical             ?
_chemical_formula_iupac                  ?
_chemical_formula_sum                    "Nd1 Cr1 Ge1 O5"
_chemical_formula_weight                 ?
_chemical_melting_point                  ?
_chemical_compound_source                ?
_chemical_absolute_configuration         ?


_citation_journal_abbrev        "Journal of Magnetism and Magnetic Materials"
_citation_journal_volume        623
_citation_page_first            .
_citation_page_last             .
_citation_article_id            172970
_citation_year                  2025
_citation_DOI                   10.1016/j.jmmm.2025.172970

loop_
_citation_author_name
"Masashi Hase"
"Shinichiro Asai"
"Minoru Soda"
"Daichi Kawana"
"Takatsugu Masuda"
"Shinichi Itoh"
"Tetsuya Yokoo"
"Masanori Kohno"
"Vladimir Yu. Pomjakushin"
"Andreas Donni"
"Martin Rotter"

_temperature_position_structure         5
_temperature_atom_positions             .
_temperature_non-magn_atom_positions    .
_temperature_cell_parameters            .

_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature     2.5
_experiment_temperature     1.9

loop_
_irrep_id
_irrep_dimension
_irrep_small_dimension
_irrep_direction_type
_irrep_action
_irrep_modes_number
_irrep_presence
? ? ? ? ? ? ?

_exptl_crystal_magnetic_properties_details
;
NPD
position structure from a determination at 5K
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry
1-dim irrep mZ3+
;

_parent_space_group.name_H-M_alt  'P b a m'
_parent_space_group.IT_number                       55
_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  'b,c,a;0,0,0'


_space_group_magn.number_BNS  62.451
_space_group_magn.name_BNS  "P_b n m a"
_space_group_magn.point_group_name  "mmm1'"
_space_group_magn.point_group_number  "8.2.25"
_cell_length_a                 7.51790
_cell_length_b                 8.52770
_cell_length_c                 11.46940
_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+1/2,y+1/2,-z+1/2,+1 
3 -x,-y,z+1/2,+1 
4 x+1/2,-y+1/2,-z,+1 
5 -x,-y,-z,+1 
6 x+1/2,-y+1/2,z+1/2,+1 
7 x,y,-z+1/2,+1 
8 -x+1/2,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,y,z+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
Nd1 Nd 0.14610 0.17530 0.00000 1
Cr1 Cr 0.00000 0.50000 0.12890 1
Ge1 Ge 0.38700 0.35790 0.25000 1
O1 O 0.00000 0.00000 0.14420 1
O2 O 0.16450 0.44890 0.00000 1
O3 O 0.16620 0.42480 0.25000 1
O4 O 0.39950 0.21640 0.12935 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
_atom_site_moment.magnitude
_atom_site_moment.spherical_azimuthal
_atom_site_moment.spherical_polar
Nd1 0.89(2) -2.18(1) 0.0 mx,my,0 2.36(2) ? ?
Cr1 0.14(2) -0.24(1) 0.0 mx,my,0 0.28(3) ? ?

