Navigation

HEAS Data Platform · Materials Science Database

K2HAuSe

Alexandria ALEX

Alex-ID: agm005010772 · Space group: Imm2 (#44)

Basic Information

Formula
K2HAuSe
Alex-ID
agm005010772
Elements
4
Sites
5
Space group
Imm2 (#44)
Crystal system
orthorhombic
Volume
139.93
ų
Cell a
5.1787
Å
Cell b
3.7457
Å
Cell c
7.8900
Å
α angle
103.73
°
β angle
109.16
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2HAuSe
K
2.00 · 40.0%
H
1.00 · 20.0%
Au
1.00 · 20.0%
Se
1.00 · 20.0%

Energy & Stability

Energy above hull
0.3076
eV/atom
Formation energy
-0.4121
eV/atom
Corrected total energy
-14.2728
eV
Raw total energy
-14.2728
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.2562
eV
DOS at Fermi level
1.7150
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_1036_spg44

Decomposition

K3AuSe2 KH2Au

Computed at

2022-07-04 07:50:20.086661

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: agm005010772).

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 agm005010772
data_agm005010772
_cell_length_a     5.17873
_cell_length_b     3.74573
_cell_length_c     7.88996
_cell_angle_alpha  103.73157
_cell_angle_beta   109.15862
_cell_angle_gamma  90.00000
_cell_volume       139.93438
_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 0.24571 0.24571 0.49142 1.00000
  K2 K 0.95939 0.95939 0.91879 1.00000
  H1 H 0.66958 0.16958 0.33916 1.00000
  Au1 Au 0.64636 0.64636 0.29272 1.00000
  Se1 Se 0.46202 0.46202 0.92404 1.00000
Get direct link