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Ba(Na2Ge)2

Alexandria ALEX

Alex-ID: agm003461277 · Space group: Cmmm (#65)

Basic Information

Formula
Ba(Na2Ge)2
Alex-ID
agm003461277
Elements
3
Sites
7
Space group
Cmmm (#65)
Crystal system
orthorhombic
Volume
221.05
ų
Cell a
4.8291
Å
Cell b
4.8374
Å
Cell c
9.7669
Å
α angle
104.34
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ba(Na2Ge)2
Ba
1.00 · 14.3%
Na
4.00 · 57.1%
Ge
2.00 · 28.6%

Energy & Stability

Energy above hull
0.0403
eV/atom
Formation energy
-0.2022
eV/atom
Corrected total energy
-17.8493
eV
Raw total energy
-17.8493
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0046
eV
DOS at Fermi level
2.9711
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_87_spg65

Decomposition

BaNaGe2 Na

Computed at

2022-02-18 02:31:41.873944

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm003461277).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm003461277
data_agm003461277
_cell_length_a     4.82906
_cell_length_b     4.83742
_cell_length_c     9.76694
_cell_angle_alpha  104.33806
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       221.05095
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  Ba1 Ba 0.00000 0.00000 0.00000 1.00000
  Na1 Na 0.50000 0.83087 0.66173 1.00000
  Na2 Na 0.00000 0.67043 0.34085 1.00000
  Na3 Na 0.50000 0.16913 0.33827 1.00000
  Na4 Na 0.00000 0.32957 0.65915 1.00000
  Ge1 Ge 0.50000 0.56362 0.12724 1.00000
  Ge2 Ge 0.50000 0.43638 0.87276 1.00000
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