#\#CIF_2.0
# Created by the Bilbao Crystallographic Server
# http://www.cryst.ehu.es
# Date: 11/19/2017 16:55:35
# Database entry: 0.102 Mn2GeO4
# Cif-like file for the case 0.102


data_5yOhtAoR
_audit_creation_date            2017-11-19
_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                    'Mn2 Ge O4'
_chemical_formula_weight                 ?
_chemical_melting_point                  ?
_chemical_compound_source                ?
_chemical_absolute_configuration         .


_citation_journal_abbrev        "PHYSICAL REVIEW LETTERS"
_citation_journal_volume        108
_citation_page_first            ?
_citation_page_last             ?
_citation_article_id            077204
_citation_year                  2012
_citation_DOI                   10.1103/PhysRevLett.108.077204

loop_
_citation_author_name
"J.S. White"
"T. Honda"
"K. Kimura"
"T. Kimura"
"C. Niedermayer"
"O. Zaharko"
"A. Poole"
"B. Roessli"
"M. Kenzelmann"






_atomic_positions_source_database_code_ICSD  .
_atomic_positions_source_other               .

_transition_temperature     17
_experiment_temperature     7

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

_exptl_crystal_magnetic_properties_details
;
NSD
other commensurate magnetic phase between 17K and 47 (see entry #0.101)
below 5.5K an incommensurate phase that also includes a k=0 component
;

_active_magnetic_irreps_details
;
1k magnetic structure
k-maximal magnetic symmetry (8 possible)
1-dim active irrep: equivalence between MSG and irrep assignment
;

_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  62.441
_space_group_magn.name_BNS  "P  n  m  a"
_space_group_magn.point_group_name  "mmm"
_space_group_magn.point_group_number  "8.1.24"
_cell_length_a                 10.6941(1)
_cell_length_b                 6.2879(1)
_cell_length_c                 5.0558(1)
_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+1/2,-z,+1
4 -x+1/2,-y,z+1/2,+1
5 -x,-y,-z,+1
6 -x+1/2,y+1/2,z+1/2,+1
7 x,-y+1/2,z,+1
8 x+1/2,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
_atom_site_occupancy
Mn1 Mn 0.00000 0.00000 0.00000 1
Mn2 Mn 0.2791(2) 0.25000 0.9906(5) 1
Ge1 Ge 0.0968(1) 0.25000 0.4343(2) 1
O1 O 0.0933(2) 0.25000 0.7784(3) 1
O2 O 0.4464(1) 0.25000 0.2206(3) 1
O3 O 0.1649(1) 0.0296(2) 0.2753(2) 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 1.5(1) 3.5(1) 1.5(1) mx,my,mz
Mn2 0.0 4.9(1) 0.0 0,my,0

