Navigation

HEAS Data Platform · Materials Science Database

Hf4CoGe

Alexandria ALEX

Alex-ID: agm002265045 · Space group: P4/mcc (#124)

Alexandria Database API

Basic Information

Formula
Hf4CoGe
Alex-ID
agm002265045
Elements
3
Sites
12
Space group
P4/mcc (#124)
Crystal system
tetragonal
Volume
225.85
ų
Cell a
5.3596
Å
Cell b
6.4914
Å
Cell c
6.4914
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Hf4CoGe
Co
2.00 · 16.7%
Ge
2.00 · 16.7%
Hf
8.00 · 66.7%

Energy & Stability

Energy above hull
0.0329
eV/atom
Formation energy
-0.4542
eV/atom
Corrected total energy
-108.5603
eV
Raw total energy
-108.5603
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
12.9144
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4_150_spg124

Decomposition

Hf2Co Hf2Ge

Computed at

2018-10-31 05:55:29

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: agm002265045).

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 agm002265045
data_agm002265045
_cell_length_a     5.35958
_cell_length_b     6.49144
_cell_length_c     6.49144
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       225.84604
_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
  Co1 Co 0.75000 0.00000 0.00000 1.00000
  Co2 Co 0.25000 0.00000 0.00000 1.00000
  Ge1 Ge 0.75000 0.50000 0.50000 1.00000
  Ge2 Ge 0.25000 0.50000 0.50000 1.00000
  Hf1 Hf 0.50000 0.14981 0.32512 1.00000
  Hf2 Hf 0.50000 0.85019 0.67488 1.00000
  Hf3 Hf 0.50000 0.67488 0.14981 1.00000
  Hf4 Hf 0.50000 0.32512 0.85019 1.00000
  Hf5 Hf 0.00000 0.85019 0.32512 1.00000
  Hf6 Hf 0.00000 0.67488 0.85019 1.00000
  Hf7 Hf 0.00000 0.32512 0.14981 1.00000
  Hf8 Hf 0.00000 0.14981 0.67488 1.00000
Get direct link