The material structure described by Ni2MnGa is Heusler structured and crystallizes in the tetragonal I4/mmm space group. Mn(1) is bonded to eight equivalent Ni(1) and four equivalent Ga(1) atoms to form distorted MnGa4Ni8 cuboctahedra that share corners with four equivalent Mn(1)Ga4Ni8 cuboctahedra, corners with eight equivalent Ga(1)Mn4Ni8 cuboctahedra, edges with eight equivalent Mn(1)Ga4Ni8 cuboctahedra, faces with four equivalent Mn(1)Ga4Ni8 cuboctahedra, and faces with six equivalent Ga(1)Mn4Ni8 cuboctahedra. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1) and four equivalent Ga(1) atoms. Ga(1) is bonded to four equivalent Mn(1) and eight equivalent Ni(1) atoms to form GaMn4Ni8 cuboctahedra that share corners with four equivalent Ga(1)Mn4Ni8 cuboctahedra, corners with eight equivalent Mn(1)Ga4Ni8 cuboctahedra, edges with eight equivalent Ga(1)Mn4Ni8 cuboctahedra, faces with four equivalent Ga(1)Mn4Ni8 cuboctahedra, and faces with six equivalent Mn(1)Ga4Ni8 cuboctahedra. is represented by the CIF file [CIF]
data_MnGaNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.872
_cell_length_b   3.872
_cell_length_c   4.210
_cell_angle_alpha   117.375
_cell_angle_beta   117.375
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   47.944
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mn  Mn0  1  0.500  0.500  0.000  1.0
  Ga  Ga1  1  0.000  0.000  0.000  1.0
  Ni  Ni2  1  0.250  0.750  0.500  1.0
  Ni  Ni3  1  0.750  0.250  0.500  1.0
[/CIF]
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The material structure described by Ni2MnGa is Heusler structured and crystallizes in the tetragonal I4/mmm space group. Mn(1) is bonded to eight equivalent Ni(1) and four equivalent Ga(1) atoms to form distorted MnGa4Ni8 cuboctahedra that share corners with four equivalent Mn(1)Ga4Ni8 cuboctahedra, corners with eight equivalent Ga(1)Mn4Ni8 cuboctahedra, edges with eight equivalent Mn(1)Ga4Ni8 cuboctahedra, faces with four equivalent Mn(1)Ga4Ni8 cuboctahedra, and faces with six equivalent Ga(1)Mn4Ni8 cuboctahedra. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1) and four equivalent Ga(1) atoms. Ga(1) is bonded to four equivalent Mn(1) and eight equivalent Ni(1) atoms to form GaMn4Ni8 cuboctahedra that share corners with four equivalent Ga(1)Mn4Ni8 cuboctahedra, corners with eight equivalent Mn(1)Ga4Ni8 cuboctahedra, edges with eight equivalent Ga(1)Mn4Ni8 cuboctahedra, faces with four equivalent Ga(1)Mn4Ni8 cuboctahedra, and faces with six equivalent Mn(1)Ga4Ni8 cuboctahedra. is represented by the CIF file [CIF]
data_MnGaNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.872
_cell_length_b   3.872
_cell_length_c   4.210
_cell_angle_alpha   117.375
_cell_angle_beta   117.375
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   47.944
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mn  Mn0  1  0.500  0.500  0.000  1.0
  Ga  Ga1  1  0.000  0.000  0.000  1.0
  Ni  Ni2  1  0.250  0.750  0.500  1.0
  Ni  Ni3  1  0.750  0.250  0.500  1.0
[/CIF]
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