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Sm4AlGe3

Alexandria ALEX

Alex-ID: agm003553052 · Space group: Pmm2 (#25)

Alexandria Database API

Basic Information

Formula
Sm4AlGe3
Alex-ID
agm003553052
Elements
3
Sites
8
Space group
Pmm2 (#25)
Crystal system
orthorhombic
Volume
199.58
ų
Cell a
4.4386
Å
Cell b
4.0582
Å
Cell c
11.0799
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm4AlGe3
Sm
4.00 · 50.0%
Al
1.00 · 12.5%
Ge
3.00 · 37.5%

Energy & Stability

Energy above hull
0.0167
eV/atom
Formation energy
-0.7687
eV/atom
Corrected total energy
-42.6414
eV
Raw total energy
-42.6414
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.7749
Total magnetisation
-0.0005
μB

Additional Information

Prototype ID

AB3C4_77_spg25

Decomposition

Sm4Ge3 SmAl2 SmGe

Computed at

2022-03-22 05:47:06.253618

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: agm003553052).

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 agm003553052
data_agm003553052
_cell_length_a     4.43864
_cell_length_b     4.05820
_cell_length_c     11.07985
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       199.58015
_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 0.50000 0.50000 0.36283 1.00000
  Sm2 Sm 0.00000 0.50000 0.85871 1.00000
  Sm3 Sm 0.00000 0.00000 0.14230 1.00000
  Sm4 Sm 0.50000 0.00000 0.63843 1.00000
  Al1 Al 0.50000 0.50000 0.07217 1.00000
  Ge1 Ge 0.00000 0.50000 0.58316 1.00000
  Ge2 Ge 0.00000 0.00000 0.42130 1.00000
  Ge3 Ge 0.50000 0.00000 0.92111 1.00000
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