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SmFe9Si4

Alexandria ALEX

Alex-ID: agm006043595 · Space group: I4/mcm (#140)

Basic Information

Formula
SmFe9Si4
Alex-ID
agm006043595
Elements
3
Sites
28
Space group
I4/mcm (#140)
Crystal system
tetragonal
Volume
350.08
ų
Cell a
7.8041
Å
Cell b
7.8041
Å
Cell c
7.9682
Å
α angle
119.32
°
β angle
119.32
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmFe9Si4
Sm
2.00 · 7.1%
Fe
18.00 · 64.3%
Si
8.00 · 28.6%

Energy & Stability

Energy above hull
0.0237
eV/atom
Formation energy
-0.3883
eV/atom
Corrected total energy
-216.0318
eV
Raw total energy
-216.0318
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0001
eV
DOS at Fermi level
28.7019
Total magnetisation
21.8824
μB

Additional Information

Prototype ID

AB4C9_42_spg140

Decomposition

Fe3Si Sm(FeSi)2 Fe

Computed at

2023-08-07 11:26:45.125222

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: agm006043595).

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 agm006043595
data_agm006043595
_cell_length_a     7.80411
_cell_length_b     7.80411
_cell_length_c     7.96816
_cell_angle_alpha  119.32127
_cell_angle_beta   119.32127
_cell_angle_gamma  90.00000
_cell_volume       350.07686
_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
  Sm1 Sm 0.75000 0.75000 0.50000 1.00000
  Sm2 Sm 0.25000 0.25000 0.50000 1.00000
  Fe1 Fe 0.06724 0.19974 1.00000 1.00000
  Fe2 Fe 0.93276 0.80026 0.00000 1.00000
  Fe3 Fe 0.56724 0.30026 0.00000 1.00000
  Fe4 Fe 0.43276 0.69974 1.00000 1.00000
  Fe5 Fe 0.30026 0.43276 0.00000 1.00000
  Fe6 Fe 0.69974 0.56724 1.00000 1.00000
  Fe7 Fe 0.19974 0.93276 0.00000 1.00000
  Fe8 Fe 0.80026 0.06724 1.00000 1.00000
  Fe9 Fe 0.00000 0.50000 0.00000 1.00000
  Fe10 Fe 0.50000 0.00000 0.00000 1.00000
  Fe11 Fe 0.80433 0.30433 0.35968 1.00000
  Fe12 Fe 0.55535 0.05535 0.35968 1.00000
  Fe13 Fe 0.94465 0.19567 0.64032 1.00000
  Fe14 Fe 0.69567 0.44465 0.64032 1.00000
  Fe15 Fe 0.19567 0.69567 0.64032 1.00000
  Fe16 Fe 0.44465 0.94465 0.64032 1.00000
  Fe17 Fe 0.30433 0.55535 0.35968 1.00000
  Fe18 Fe 0.05535 0.80433 0.35968 1.00000
  Si1 Si 0.29262 0.79262 0.24173 1.00000
  Si2 Si 0.94911 0.44911 0.24173 1.00000
  Si3 Si 0.55089 0.70738 0.75827 1.00000
  Si4 Si 0.20738 0.05089 0.75827 1.00000
  Si5 Si 0.70738 0.20738 0.75827 1.00000
  Si6 Si 0.05089 0.55089 0.75827 1.00000
  Si7 Si 0.79262 0.94911 0.24173 1.00000
  Si8 Si 0.44911 0.29262 0.24173 1.00000
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