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V8CuSe20

Alexandria ALEX

Alex-ID: agm008309752 · Space group: C2/m (#12)

Basic Information

Formula
V8CuSe20
Alex-ID
agm008309752
Elements
3
Sites
29
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
646.84
ų
Cell a
10.5289
Å
Cell b
10.5289
Å
Cell c
19.1486
Å
α angle
78.03
°
β angle
101.97
°
γ angle
161.84
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
V8CuSe20
V
8.00 · 27.6%
Cu
1.00 · 3.4%
Se
20.00 · 69.0%

Energy & Stability

Energy above hull
0.0373
eV/atom
Formation energy
-0.5721
eV/atom
Corrected total energy
-163.5123
eV
Raw total energy
-163.5123
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0021
eV
DOS at Fermi level
11.6351
Total magnetisation
1.9536
μB

Additional Information

Prototype ID

AB8C20_0_spg12

Decomposition

V2Se9 VCu3Se4 VSe2

Computed at

2024-12-25 00:51:30

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: agm008309752).

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 agm008309752
data_agm008309752
_cell_length_a     10.52892
_cell_length_b     10.52892
_cell_length_c     19.14862
_cell_angle_alpha  78.03439
_cell_angle_beta   101.96561
_cell_angle_gamma  161.84076
_cell_volume       646.83808
_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
  V1 V 0.08363 0.91637 0.40615 1.00000
  V2 V 0.91637 0.08363 0.59385 1.00000
  V3 V 0.32969 0.67031 0.68766 1.00000
  V4 V 0.67031 0.32969 0.31234 1.00000
  V5 V 0.26510 0.73490 0.21505 1.00000
  V6 V 0.73490 0.26510 0.78495 1.00000
  V7 V 0.15737 0.84263 0.95064 1.00000
  V8 V 0.84263 0.15737 0.04936 1.00000
  Cu1 Cu 0.50000 0.50000 0.50000 1.00000
  Se1 Se 0.43451 0.56549 0.09882 1.00000
  Se2 Se 0.56549 0.43451 0.90118 1.00000
  Se3 Se 0.39408 0.60592 0.97428 1.00000
  Se4 Se 0.60592 0.39408 0.02572 1.00000
  Se5 Se 0.15057 0.84943 0.81228 1.00000
  Se6 Se 0.84943 0.15057 0.18772 1.00000
  Se7 Se 0.38586 0.61414 0.49450 1.00000
  Se8 Se 0.61414 0.38586 0.50550 1.00000
  Se9 Se 0.20855 0.79145 0.68422 1.00000
  Se10 Se 0.79145 0.20855 0.31578 1.00000
  Se11 Se 0.25505 0.74495 0.07041 1.00000
  Se12 Se 0.74495 0.25505 0.92959 1.00000
  Se13 Se 0.32685 0.67315 0.81838 1.00000
  Se14 Se 0.67315 0.32685 0.18162 1.00000
  Se15 Se 0.49185 0.50815 0.37507 1.00000
  Se16 Se 0.50815 0.49185 0.62493 1.00000
  Se17 Se 0.20342 0.79658 0.41040 1.00000
  Se18 Se 0.79658 0.20342 0.58960 1.00000
  Se19 Se 0.07947 0.92053 0.27558 1.00000
  Se20 Se 0.92053 0.07947 0.72442 1.00000
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