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Ag2Te4Se9

Alexandria ALEX

Alex-ID: agm005642002 · Space group: C2/c (#15)

Basic Information

Formula
Ag2Te4Se9
Alex-ID
agm005642002
Elements
3
Sites
30
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
863.02
ų
Cell a
7.1535
Å
Cell b
7.1516
Å
Cell c
19.8666
Å
α angle
86.92
°
β angle
86.94
°
γ angle
58.29
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ag2Te4Se9
Ag
4.00 · 13.3%
Te
8.00 · 26.7%
Se
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0819
eV/atom
Formation energy
0.0587
eV/atom
Corrected total energy
-97.6088
eV
Raw total energy
-97.6088
eV

Electronic Structure

Indirect band gap
0.3621
eV
Direct band gap
0.5123
eV
DOS at Fermi level
0.7460
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_138_spg15

Decomposition

TeSe2 Ag2Se

Computed at

2023-06-15 14:58:19.091998

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: agm005642002).

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 agm005642002
data_agm005642002
_cell_length_a     7.15347
_cell_length_b     7.15159
_cell_length_c     19.86660
_cell_angle_alpha  86.91958
_cell_angle_beta   86.93896
_cell_angle_gamma  58.29195
_cell_volume       863.01826
_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
  Ag1 Ag 0.98290 0.99997 0.34624 1.00000
  Ag2 Ag 0.99993 0.01707 0.15382 1.00000
  Ag3 Ag 0.01710 0.00003 0.65376 1.00000
  Ag4 Ag 0.00007 0.98293 0.84618 1.00000
  Te1 Te 0.33153 0.31833 0.99613 1.00000
  Te2 Te 0.31825 0.33116 0.49612 1.00000
  Te3 Te 0.66847 0.68167 0.00387 1.00000
  Te4 Te 0.32487 0.36684 0.18311 1.00000
  Te5 Te 0.68175 0.66884 0.50388 1.00000
  Te6 Te 0.63297 0.67476 0.31690 1.00000
  Te7 Te 0.36703 0.32524 0.68310 1.00000
  Te8 Te 0.67513 0.63316 0.81689 1.00000
  Se1 Se 0.99822 0.29358 0.75778 1.00000
  Se2 Se 0.30990 0.69016 0.74994 1.00000
  Se3 Se 0.70672 0.00162 0.74219 1.00000
  Se4 Se 0.00178 0.70642 0.24222 1.00000
  Se5 Se 0.69010 0.30984 0.25006 1.00000
  Se6 Se 0.29328 0.99838 0.25781 1.00000
  Se7 Se 0.65660 0.96957 0.40661 1.00000
  Se8 Se 0.97937 0.33035 0.43142 1.00000
  Se9 Se 0.35292 0.68440 0.41759 1.00000
  Se10 Se 0.66955 0.02046 0.06870 1.00000
  Se11 Se 0.31549 0.64719 0.08234 1.00000
  Se12 Se 0.03063 0.34331 0.09341 1.00000
  Se13 Se 0.34340 0.03043 0.59339 1.00000
  Se14 Se 0.02063 0.66965 0.56858 1.00000
  Se15 Se 0.64708 0.31560 0.58241 1.00000
  Se16 Se 0.33045 0.97954 0.93130 1.00000
  Se17 Se 0.68451 0.35281 0.91766 1.00000
  Se18 Se 0.96937 0.65669 0.90659 1.00000
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