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Rb4Mg

Alexandria ALEX

Alex-ID: agm005413084 · Space group: I4/mmm (#139)

Basic Information

Formula
Rb4Mg
Alex-ID
agm005413084
Elements
2
Sites
5
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
417.36
ų
Cell a
12.9848
Å
Cell b
12.9848
Å
Cell c
12.9848
Å
α angle
154.09
°
β angle
154.09
°
γ angle
36.97
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Rb4Mg
Rb
4.00 · 80.0%
Mg
1.00 · 20.0%

Energy & Stability

Energy above hull
0.2822
eV/atom
Formation energy
0.2822
eV/atom
Corrected total energy
-4.0540
eV
Raw total energy
-4.0540
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0068
eV
DOS at Fermi level
4.4506
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB4_261_spg139

Decomposition

Mg Rb

Computed at

2023-03-17 17:45:23.700585

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: agm005413084).

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 agm005413084
data_agm005413084
_cell_length_a     12.98478
_cell_length_b     12.98478
_cell_length_c     12.98478
_cell_angle_alpha  154.09201
_cell_angle_beta   154.09201
_cell_angle_gamma  36.96588
_cell_volume       417.36214
_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
  Rb1 Rb 0.75000 0.25000 0.50000 1.00000
  Rb2 Rb 0.41541 0.41541 0.00000 1.00000
  Rb3 Rb 0.58459 0.58459 0.00000 1.00000
  Rb4 Rb 0.25000 0.75000 0.50000 1.00000
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
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