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HEAS Data Platform · Materials Science Database

FeCoNi2

Alexandria ALEX

Alex-ID: agm002829656 · Space group: I-42d (#122)

Alexandria Database API

Basic Information

Formula
FeCoNi2
Alex-ID
agm002829656
Elements
3
Sites
8
Space group
I-42d (#122)
Crystal system
tetragonal
Volume
92.53
ų
Cell a
6.2191
Å
Cell b
6.2191
Å
Cell c
5.0062
Å
α angle
51.60
°
β angle
51.60
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
FeCoNi2
Ni
4.00 · 50.0%
Co
2.00 · 25.0%
Fe
2.00 · 25.0%

Energy & Stability

Energy above hull
0.7809
eV/atom
Formation energy
0.7128
eV/atom
Corrected total energy
-48.6063
eV
Raw total energy
-48.6063
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
20.7776
Total magnetisation
0.0001
μB

Additional Information

Prototype ID

ABC2_185_spg122

Decomposition

FeCo Fe2CoNi5 Co

Computed at

2016-12-30 07:27:53

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: agm002829656).

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 agm002829656
data_agm002829656
_cell_length_a     6.21907
_cell_length_b     6.21907
_cell_length_c     5.00616
_cell_angle_alpha  51.60038
_cell_angle_beta   51.60038
_cell_angle_gamma  90.00000
_cell_volume       92.52717
_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
  Ni1 Ni 0.61906 0.12500 0.25000 1.00000
  Ni2 Ni 0.13094 0.62500 0.25000 1.00000
  Ni3 Ni 0.37500 0.38094 0.75000 1.00000
  Ni4 Ni 0.87500 0.86906 0.75000 1.00000
  Co1 Co 0.00000 0.00000 0.00000 1.00000
  Co2 Co 0.75000 0.25000 0.50000 1.00000
  Fe1 Fe 0.50000 0.50000 0.00000 1.00000
  Fe2 Fe 0.25000 0.75000 0.50000 1.00000
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