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Hf2Fe5CoB2

Alexandria ALEX

Alex-ID: agm005138609 · Space group: P4/mbm (#127)

Alexandria Database API

Basic Information

Formula
Hf2Fe5CoB2
Alex-ID
agm005138609
Elements
4
Sites
20
Space group
P4/mbm (#127)
Crystal system
tetragonal
Volume
228.66
ų
Cell a
3.0665
Å
Cell b
8.6351
Å
Cell c
8.6351
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Hf2Fe5CoB2
Hf
4.00 · 20.0%
Fe
10.00 · 50.0%
Co
2.00 · 10.0%
B
4.00 · 20.0%

Energy & Stability

Energy above hull
0.0542
eV/atom
Formation energy
-0.3744
eV/atom
Corrected total energy
-172.8859
eV
Raw total energy
-172.8859
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0271
eV
DOS at Fermi level
18.7491
Total magnetisation
14.1329
μB

Additional Information

Prototype ID

AB2C2D5_48_spg127

Decomposition

Fe4Co HfCo3B2 HfFe2 HfB2

Computed at

2022-07-14 13:18:22.533027

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: agm005138609).

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 agm005138609
data_agm005138609
_cell_length_a     3.06654
_cell_length_b     8.63511
_cell_length_c     8.63511
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       228.65656
_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 0.00000 0.67576 0.17576 1.00000
  Hf2 Hf 0.00000 0.32424 0.82424 1.00000
  Hf3 Hf 0.00000 0.17576 0.32424 1.00000
  Hf4 Hf 0.00000 0.82424 0.67576 1.00000
  Fe1 Fe 0.50000 0.21611 0.06657 1.00000
  Fe2 Fe 0.50000 0.78389 0.93343 1.00000
  Fe3 Fe 0.50000 0.06657 0.78389 1.00000
  Fe4 Fe 0.50000 0.71611 0.43343 1.00000
  Fe5 Fe 0.50000 0.93343 0.21611 1.00000
  Fe6 Fe 0.50000 0.28389 0.56657 1.00000
  Fe7 Fe 0.50000 0.56657 0.71611 1.00000
  Fe8 Fe 0.50000 0.43343 0.28389 1.00000
  Fe9 Fe 0.50000 0.50000 0.00000 1.00000
  Fe10 Fe 0.50000 0.00000 0.50000 1.00000
  Co1 Co 0.00000 0.00000 0.00000 1.00000
  Co2 Co 0.00000 0.50000 0.50000 1.00000
  B1 B 0.00000 0.12081 0.62081 1.00000
  B2 B 0.00000 0.87919 0.37919 1.00000
  B3 B 0.00000 0.62081 0.87919 1.00000
  B4 B 0.00000 0.37919 0.12081 1.00000
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