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Ac4SiSeS2

Alexandria ALEX

Alex-ID: agm077621631 · Space group: I4/mmm (#139)

Alexandria Database API

Basic Information

Formula
Ac4SiSeS2
Alex-ID
agm077621631
Elements
4
Sites
8
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
246.00
ų
Cell a
7.6836
Å
Cell b
7.6836
Å
Cell c
7.6836
Å
α angle
131.94
°
β angle
131.94
°
γ angle
70.33
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac4SiSeS2
Ac
4.00 · 50.0%
Si
1.00 · 12.5%
Se
1.00 · 12.5%
S
2.00 · 25.0%

Energy & Stability

Energy above hull
0.0081
eV/atom
Formation energy
-1.8273
eV/atom
Corrected total energy
-48.2206
eV
Raw total energy
-46.8936
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0670
eV
DOS at Fermi level
3.6510
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_12_spg121

Decomposition

Ac4SiS3 Ac4SiSe3

Computed at

2025-01-10 04:46:34

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: agm077621631).

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 agm077621631
data_agm077621631
_cell_length_a     7.68360
_cell_length_b     7.68360
_cell_length_c     7.68360
_cell_angle_alpha  131.93770
_cell_angle_beta   131.93770
_cell_angle_gamma  70.32745
_cell_volume       245.99893
_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 0.24515 0.24515 0.00000 1.00000
  Ac2 Ac 0.75485 0.75485 0.00000 1.00000
  Ac3 Ac 0.50000 0.00000 0.50000 1.00000
  Ac4 Ac 0.00000 0.50000 0.50000 1.00000
  Si1 Si 0.00000 0.00000 0.00000 1.00000
  Se1 Se 0.50000 0.50000 0.00000 1.00000
  S1 S 0.75000 0.25000 0.50000 1.00000
  S2 S 0.25000 0.75000 0.50000 1.00000
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