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K2Rb

Alexandria ALEX

Alex-ID: agm077686898 · Space group: Pnma (#62)

Basic Information

Formula
K2Rb
Alex-ID
agm077686898
Elements
2
Sites
12
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
935.46
ų
Cell a
6.7872
Å
Cell b
6.8162
Å
Cell c
20.2206
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Rb
K
8.00 · 66.7%
Rb
4.00 · 33.3%

Energy & Stability

Energy above hull
0.0059
eV/atom
Formation energy
0.0059
eV/atom
Corrected total energy
-12.6164
eV
Raw total energy
-12.6164
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
9.3144
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2_767_spg63

Decomposition

Rb K

Computed at

2025-01-09 15:51:58

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: agm077686898).

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 agm077686898
data_agm077686898
_cell_length_a     6.78716
_cell_length_b     6.81623
_cell_length_c     20.22061
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       935.46228
_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 0.75000 0.74574 0.83644 1.00000
  K2 K 0.25000 0.25426 0.16356 1.00000
  K3 K 0.25000 0.75426 0.33644 1.00000
  K4 K 0.75000 0.24574 0.66356 1.00000
  K5 K 0.75000 0.75022 0.49971 1.00000
  K6 K 0.25000 0.24978 0.50029 1.00000
  K7 K 0.25000 0.74978 0.99971 1.00000
  K8 K 0.75000 0.25022 0.00029 1.00000
  Rb1 Rb 0.25000 0.74584 0.66421 1.00000
  Rb2 Rb 0.75000 0.25416 0.33579 1.00000
  Rb3 Rb 0.75000 0.75416 0.16421 1.00000
  Rb4 Rb 0.25000 0.24584 0.83579 1.00000
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