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KSnSe2

Alexandria ALEX

Alex-ID: agm005709349 · Space group: Pnma (#62)

Basic Information

Formula
KSnSe2
Alex-ID
agm005709349
Elements
3
Sites
32
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
1,093.39
ų
Cell a
7.4851
Å
Cell b
9.3725
Å
Cell c
15.5856
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KSnSe2
K
8.00 · 25.0%
Sn
8.00 · 25.0%
Se
16.00 · 50.0%

Energy & Stability

Energy above hull
0.0107
eV/atom
Formation energy
-0.7692
eV/atom
Corrected total energy
-121.3053
eV
Raw total energy
-121.3053
eV

Electronic Structure

Indirect band gap
1.2197
eV
Direct band gap
1.2197
eV
DOS at Fermi level
-0.0029
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2_495_spg62

Decomposition

K2SnSe3 SnSe

Computed at

2023-07-12 06:40:10.821086

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: agm005709349).

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 agm005709349
data_agm005709349
_cell_length_a     7.48510
_cell_length_b     9.37249
_cell_length_c     15.58562
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       1093.39313
_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
  K1 K 0.25000 0.63226 0.69386 1.00000
  K2 K 0.75000 0.36774 0.30614 1.00000
  K3 K 0.25000 0.13226 0.80614 1.00000
  K4 K 0.75000 0.86774 0.19386 1.00000
  K5 K 0.25000 0.99129 0.35633 1.00000
  K6 K 0.75000 0.00871 0.64367 1.00000
  K7 K 0.25000 0.49129 0.14367 1.00000
  K8 K 0.75000 0.50871 0.85633 1.00000
  Sn1 Sn 0.75000 0.38857 0.53665 1.00000
  Sn2 Sn 0.75000 0.77899 0.43137 1.00000
  Sn3 Sn 0.25000 0.22101 0.56863 1.00000
  Sn4 Sn 0.75000 0.27899 0.06863 1.00000
  Sn5 Sn 0.25000 0.72101 0.93137 1.00000
  Sn6 Sn 0.75000 0.88857 0.96335 1.00000
  Sn7 Sn 0.25000 0.11143 0.03665 1.00000
  Sn8 Sn 0.25000 0.61143 0.46335 1.00000
  Se1 Se 0.50849 0.82726 0.83890 1.00000
  Se2 Se 0.50849 0.32726 0.66110 1.00000
  Se3 Se 0.00849 0.67274 0.33890 1.00000
  Se4 Se 0.99151 0.82726 0.83890 1.00000
  Se5 Se 0.49151 0.17274 0.16110 1.00000
  Se6 Se 0.49151 0.67274 0.33890 1.00000
  Se7 Se 0.99151 0.32726 0.66110 1.00000
  Se8 Se 0.00849 0.17274 0.16110 1.00000
  Se9 Se 0.25000 0.45464 0.92368 1.00000
  Se10 Se 0.75000 0.54536 0.07632 1.00000
  Se11 Se 0.25000 0.95464 0.57632 1.00000
  Se12 Se 0.75000 0.67172 0.58276 1.00000
  Se13 Se 0.25000 0.82828 0.08276 1.00000
  Se14 Se 0.75000 0.17172 0.91724 1.00000
  Se15 Se 0.25000 0.32828 0.41724 1.00000
  Se16 Se 0.75000 0.04536 0.42368 1.00000
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