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FeCoGe2

Alexandria ALEX

Alex-ID: agm005103179 · Space group: R3m (#160)

Basic Information

Formula
FeCoGe2
Alex-ID
agm005103179
Elements
3
Sites
4
Space group
R3m (#160)
Crystal system
trigonal
Volume
55.52
ų
Cell a
3.6827
Å
Cell b
3.6827
Å
Cell c
5.1832
Å
α angle
69.19
°
β angle
69.19
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
FeCoGe2
Fe
1.00 · 25.0%
Co
1.00 · 25.0%
Ge
2.00 · 50.0%

Energy & Stability

Energy above hull
0.2240
eV/atom
Formation energy
0.0550
eV/atom
Corrected total energy
-24.6014
eV
Raw total energy
-24.6014
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0072
eV
DOS at Fermi level
3.0646
Total magnetisation
0.9043
μB

Additional Information

Prototype ID

ABC2_797_spg160

Decomposition

CoGe FeGe

Computed at

2022-07-06 14:34:47.374285

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: agm005103179).

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 agm005103179
data_agm005103179
_cell_length_a     3.68269
_cell_length_b     3.68269
_cell_length_c     5.18315
_cell_angle_alpha  69.19089
_cell_angle_beta   69.19089
_cell_angle_gamma  60.00000
_cell_volume       55.51931
_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
  Fe1 Fe 0.49047 0.49047 0.52858 1.00000
  Co1 Co 0.67629 0.67629 0.97113 1.00000
  Ge1 Ge 0.07579 0.07579 0.77263 1.00000
  Ge2 Ge 0.25745 0.25745 0.22766 1.00000
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