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K9RbAu2

Alexandria ALEX

Alex-ID: agm045397137 · Space group: P6/mmm (#191)

Basic Information

Formula
K9RbAu2
Alex-ID
agm045397137
Elements
3
Sites
12
Space group
P6/mmm (#191)
Crystal system
hexagonal
Volume
694.25
ų
Cell a
12.3478
Å
Cell b
12.3478
Å
Cell c
5.2616
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.07
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K9RbAu2
K
9.00 · 75.0%
Rb
1.00 · 8.3%
Au
2.00 · 16.7%

Energy & Stability

Energy above hull
0.0257
eV/atom
Formation energy
-0.0924
eV/atom
Corrected total energy
-18.5507
eV
Raw total energy
-18.5507
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0002
eV
DOS at Fermi level
8.2469
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C9_102_spg65

Decomposition

K5Au3 K Rb

Computed at

2025-05-19 20:16:10

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: agm045397137).

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 agm045397137
data_agm045397137
_cell_length_a     12.34775
_cell_length_b     12.34775
_cell_length_c     5.26163
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.07082
_cell_volume       694.25029
_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 0.21664 0.43390 0.50000 1.00000
  K2 K 0.78249 0.21751 0.50000 1.00000
  K3 K 0.00000 0.50000 0.00000 1.00000
  K4 K 0.78336 0.56610 0.50000 1.00000
  K5 K 0.56610 0.78336 0.50000 1.00000
  K6 K 0.43390 0.21664 0.50000 1.00000
  K7 K 0.21751 0.78249 0.50000 1.00000
  K8 K 0.50000 0.00000 0.00000 1.00000
  K9 K 0.50000 0.50000 0.00000 1.00000
  Rb1 Rb 0.00000 0.00000 0.00000 1.00000
  Au1 Au 0.66653 0.33347 0.00000 1.00000
  Au2 Au 0.33347 0.66653 0.00000 1.00000
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