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AcFe9B4

Alexandria ALEX

Alex-ID: agm006044522 · Space group: I4/mcm (#140)

Basic Information

Formula
AcFe9B4
Alex-ID
agm006044522
Elements
3
Sites
28
Space group
I4/mcm (#140)
Crystal system
tetragonal
Volume
306.51
ų
Cell a
7.4810
Å
Cell b
7.4811
Å
Cell c
7.6143
Å
α angle
119.42
°
β angle
119.42
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
AcFe9B4
Ac
2.00 · 7.1%
Fe
18.00 · 64.3%
B
8.00 · 28.6%

Energy & Stability

Energy above hull
0.3138
eV/atom
Formation energy
0.0479
eV/atom
Corrected total energy
-212.6245
eV
Raw total energy
-212.6245
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0030
eV
DOS at Fermi level
29.3410
Total magnetisation
25.4371
μB

Additional Information

Prototype ID

AB4C9_5_spg140

Decomposition

Fe2B Ac Fe

Computed at

2023-08-07 11:11:10.490434

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: agm006044522).

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 agm006044522
data_agm006044522
_cell_length_a     7.48102
_cell_length_b     7.48107
_cell_length_c     7.61426
_cell_angle_alpha  119.42303
_cell_angle_beta   119.42283
_cell_angle_gamma  90.00000
_cell_volume       306.50782
_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
  Ac1 Ac 0.75000 0.75000 0.50000 1.00000
  Ac2 Ac 0.25000 0.25000 0.50000 1.00000
  Fe1 Fe 0.07381 0.19969 0.00000 1.00000
  Fe2 Fe 0.92619 0.80031 1.00000 1.00000
  Fe3 Fe 0.57381 0.30031 0.00000 1.00000
  Fe4 Fe 0.42619 0.69969 1.00000 1.00000
  Fe5 Fe 0.30031 0.42619 0.00000 1.00000
  Fe6 Fe 0.69969 0.57381 1.00000 1.00000
  Fe7 Fe 0.19969 0.92619 1.00000 1.00000
  Fe8 Fe 0.80031 0.07381 0.00000 1.00000
  Fe9 Fe 0.00000 0.50000 0.00000 1.00000
  Fe10 Fe 0.50000 0.00000 0.00000 1.00000
  Fe11 Fe 0.81853 0.31853 0.37247 1.00000
  Fe12 Fe 0.55394 0.05394 0.37247 1.00000
  Fe13 Fe 0.94606 0.18147 0.62753 1.00000
  Fe14 Fe 0.68147 0.44606 0.62753 1.00000
  Fe15 Fe 0.18147 0.68147 0.62753 1.00000
  Fe16 Fe 0.44606 0.94606 0.62753 1.00000
  Fe17 Fe 0.31853 0.55394 0.37247 1.00000
  Fe18 Fe 0.05394 0.81853 0.37247 1.00000
  B1 B 0.27789 0.77789 0.22147 1.00000
  B2 B 0.94359 0.44359 0.22147 1.00000
  B3 B 0.55641 0.72211 0.77853 1.00000
  B4 B 0.22211 0.05641 0.77853 1.00000
  B5 B 0.72211 0.22211 0.77853 1.00000
  B6 B 0.05641 0.55641 0.77853 1.00000
  B7 B 0.77789 0.94359 0.22147 1.00000
  B8 B 0.44359 0.27789 0.22147 1.00000
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