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RbCa2Mg2Bi3

Alexandria ALEX

Alex-ID: agm019719956 · Space group: Pnma (#62)

Basic Information

Formula
RbCa2Mg2Bi3
Alex-ID
agm019719956
Elements
4
Sites
32
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
1,047.80
ų
Cell a
4.9959
Å
Cell b
12.6876
Å
Cell c
16.5305
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
RbCa2Mg2Bi3
Rb
4.00 · 12.5%
Ca
8.00 · 25.0%
Mg
8.00 · 25.0%
Bi
12.00 · 37.5%

Energy & Stability

Energy above hull
0.0269
eV/atom
Formation energy
-0.5995
eV/atom
Corrected total energy
-98.4005
eV
Raw total energy
-98.4005
eV

Electronic Structure

Indirect band gap
0.1640
eV
Direct band gap
0.1640
eV
DOS at Fermi level
0.2946
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D3_26_spg62

Decomposition

Ca2MgBi2 RbMgBi

Computed at

2025-02-27 18:03:57

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: agm019719956).

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 agm019719956
data_agm019719956
_cell_length_a     4.99588
_cell_length_b     12.68764
_cell_length_c     16.53045
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       1047.79749
_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 0.58749 0.45796 1.00000
  Rb2 Rb 0.75000 0.08749 0.04204 1.00000
  Rb3 Rb 0.25000 0.41251 0.54204 1.00000
  Rb4 Rb 0.25000 0.91251 0.95796 1.00000
  Ca1 Ca 0.75000 0.89966 0.57833 1.00000
  Ca2 Ca 0.75000 0.39966 0.92167 1.00000
  Ca3 Ca 0.25000 0.10034 0.42167 1.00000
  Ca4 Ca 0.25000 0.60034 0.07833 1.00000
  Ca5 Ca 0.75000 0.64299 0.72071 1.00000
  Ca6 Ca 0.75000 0.14299 0.77929 1.00000
  Ca7 Ca 0.25000 0.35701 0.27929 1.00000
  Ca8 Ca 0.25000 0.85701 0.22071 1.00000
  Mg1 Mg 0.75000 0.70103 0.92628 1.00000
  Mg2 Mg 0.75000 0.20103 0.57372 1.00000
  Mg3 Mg 0.25000 0.29897 0.07372 1.00000
  Mg4 Mg 0.25000 0.79897 0.42628 1.00000
  Mg5 Mg 0.75000 0.62098 0.21935 1.00000
  Mg6 Mg 0.75000 0.12098 0.28065 1.00000
  Mg7 Mg 0.25000 0.37902 0.78065 1.00000
  Mg8 Mg 0.25000 0.87902 0.71935 1.00000
  Bi1 Bi 0.75000 0.91538 0.37589 1.00000
  Bi2 Bi 0.75000 0.41538 0.12411 1.00000
  Bi3 Bi 0.25000 0.08462 0.62411 1.00000
  Bi4 Bi 0.25000 0.58462 0.87589 1.00000
  Bi5 Bi 0.75000 0.88427 0.80520 1.00000
  Bi6 Bi 0.75000 0.38427 0.69480 1.00000
  Bi7 Bi 0.25000 0.11573 0.19480 1.00000
  Bi8 Bi 0.25000 0.61573 0.30520 1.00000
  Bi9 Bi 0.75000 0.28601 0.40679 1.00000
  Bi10 Bi 0.75000 0.78601 0.09321 1.00000
  Bi11 Bi 0.25000 0.71399 0.59321 1.00000
  Bi12 Bi 0.25000 0.21399 0.90679 1.00000
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