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Hf2Ge2Os

Alexandria ALEX

Alex-ID: agm002979871 · Space group: P4/mbm (#127)

Alexandria Database API

Basic Information

Formula
Hf2Ge2Os
Alex-ID
agm002979871
Elements
3
Sites
10
Space group
P4/mbm (#127)
Crystal system
tetragonal
Volume
193.29
ų
Cell a
7.2133
Å
Cell b
7.2133
Å
Cell c
3.7148
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Hf2Ge2Os
Hf
4.00 · 40.0%
Ge
4.00 · 40.0%
Os
2.00 · 20.0%

Energy & Stability

Energy above hull
0.7854
eV/atom
Formation energy
0.1542
eV/atom
Corrected total energy
-79.2009
eV
Raw total energy
-79.2009
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.6955
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2_3_spg127

Decomposition

HfGe2 Hf5Ge4 HfGeOs

Computed at

2016-12-04 22:39:39

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: agm002979871).

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 agm002979871
data_agm002979871
_cell_length_a     7.21335
_cell_length_b     7.21335
_cell_length_c     3.71483
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       193.29148
_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
  Hf1 Hf 0.32041 0.82041 0.00000 1.00000
  Hf2 Hf 0.82041 0.67959 0.00000 1.00000
  Hf3 Hf 0.67959 0.17959 0.00000 1.00000
  Hf4 Hf 0.17959 0.32041 0.00000 1.00000
  Ge1 Ge 0.12406 0.62406 0.50000 1.00000
  Ge2 Ge 0.62406 0.87594 0.50000 1.00000
  Ge3 Ge 0.87594 0.37594 0.50000 1.00000
  Ge4 Ge 0.37594 0.12406 0.50000 1.00000
  Os1 Os 0.00000 0.00000 0.00000 1.00000
  Os2 Os 0.50000 0.50000 0.00000 1.00000
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