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HEAS Data Platform · Materials Science Database

K9As

Alexandria ALEX

Alex-ID: agm071482452 · Space group: P4_332 (#212)

Basic Information

Formula
K9As
Alex-ID
agm071482452
Elements
2
Sites
40
Space group
P4_332 (#212)
Crystal system
cubic
Volume
2,829.92
ų
Cell a
14.1446
Å
Cell b
14.1446
Å
Cell c
14.1446
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K9As
K
36.00 · 90.0%
As
4.00 · 10.0%

Energy & Stability

Energy above hull
0.0668
eV/atom
Formation energy
-0.0650
eV/atom
Corrected total energy
-60.8775
eV
Raw total energy
-60.8775
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
29.5455
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB9_66_spg212

Decomposition

K3As K

Computed at

2024-09-12 14:50:01.101188

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: agm071482452).

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 agm071482452
data_agm071482452
_cell_length_a     14.14463
_cell_length_b     14.14463
_cell_length_c     14.14463
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       2829.92446
_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 0.62500 0.01473 0.23527 1.00000
  K2 K 0.87500 0.98527 0.73527 1.00000
  K3 K 0.37500 0.51473 0.26473 1.00000
  K4 K 0.12500 0.48527 0.76473 1.00000
  K5 K 0.23527 0.62500 0.01473 1.00000
  K6 K 0.73527 0.87500 0.98527 1.00000
  K7 K 0.26473 0.37500 0.51473 1.00000
  K8 K 0.76473 0.12500 0.48527 1.00000
  K9 K 0.01473 0.23527 0.62500 1.00000
  K10 K 0.98527 0.73527 0.87500 1.00000
  K11 K 0.51473 0.26473 0.37500 1.00000
  K12 K 0.48527 0.76473 0.12500 1.00000
  K13 K 0.37431 0.87410 0.39935 1.00000
  K14 K 0.12569 0.12590 0.89935 1.00000
  K15 K 0.62569 0.37410 0.10065 1.00000
  K16 K 0.87431 0.62590 0.60065 1.00000
  K17 K 0.39935 0.37431 0.87410 1.00000
  K18 K 0.89935 0.12569 0.12590 1.00000
  K19 K 0.10065 0.62569 0.37410 1.00000
  K20 K 0.60065 0.87431 0.62590 1.00000
  K21 K 0.87410 0.39935 0.37431 1.00000
  K22 K 0.12590 0.89935 0.12569 1.00000
  K23 K 0.37410 0.10065 0.62569 1.00000
  K24 K 0.62590 0.60065 0.87431 1.00000
  K25 K 0.12410 0.12431 0.35065 1.00000
  K26 K 0.37590 0.87569 0.85065 1.00000
  K27 K 0.62410 0.37569 0.64935 1.00000
  K28 K 0.87590 0.62431 0.14935 1.00000
  K29 K 0.62431 0.14935 0.87590 1.00000
  K30 K 0.37569 0.64935 0.62410 1.00000
  K31 K 0.87569 0.85065 0.37590 1.00000
  K32 K 0.12431 0.35065 0.12410 1.00000
  K33 K 0.64935 0.62410 0.37569 1.00000
  K34 K 0.14935 0.87590 0.62431 1.00000
  K35 K 0.35065 0.12410 0.12431 1.00000
  K36 K 0.85065 0.37590 0.87569 1.00000
  As1 As 0.12500 0.12500 0.12500 1.00000
  As2 As 0.37500 0.87500 0.62500 1.00000
  As3 As 0.87500 0.62500 0.37500 1.00000
  As4 As 0.62500 0.37500 0.87500 1.00000
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