Navigation

HEAS Data Platform · Materials Science Database

Rb2CaGeI6

Alexandria ALEX

Alex-ID: agm004921925 · Space group: Pmmn (#59)

Alexandria Database API

Basic Information

Formula
Rb2CaGeI6
Alex-ID
agm004921925
Elements
4
Sites
20
Space group
Pmmn (#59)
Crystal system
orthorhombic
Volume
907.99
ų
Cell a
8.6411
Å
Cell b
8.6112
Å
Cell c
12.2024
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Rb2CaGeI6
Rb
4.00 · 20.0%
Ca
2.00 · 10.0%
Ge
2.00 · 10.0%
I
12.00 · 60.0%

Energy & Stability

Energy above hull
0.0569
eV/atom
Formation energy
-1.1295
eV/atom
Corrected total energy
-58.2997
eV
Raw total energy
-58.2997
eV

Electronic Structure

Indirect band gap
2.5713
eV
Direct band gap
2.7186
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D6_3_spg59

Decomposition

RbCaI3 Rb4CaI6 GeI2

Computed at

2022-07-21 18:59:45.438233

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: agm004921925).

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 agm004921925
data_agm004921925
_cell_length_a     8.64110
_cell_length_b     8.61124
_cell_length_c     12.20239
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       907.98754
_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 0.50000 0.75818 0.23673 1.00000
  Rb2 Rb 0.00000 0.24182 0.73673 1.00000
  Rb3 Rb 0.50000 0.75818 0.76327 1.00000
  Rb4 Rb 0.00000 0.24182 0.26327 1.00000
  Ca1 Ca 0.50000 0.24995 0.50000 1.00000
  Ca2 Ca 0.00000 0.75005 0.00000 1.00000
  Ge1 Ge 0.00000 0.74836 0.50000 1.00000
  Ge2 Ge 0.50000 0.25164 0.00000 1.00000
  I1 I 0.50000 0.24610 0.24571 1.00000
  I2 I 0.50000 0.24610 0.75429 1.00000
  I3 I 0.00000 0.75390 0.25429 1.00000
  I4 I 0.00000 0.75390 0.74571 1.00000
  I5 I 0.24551 0.99541 0.50000 1.00000
  I6 I 0.75449 0.99541 0.50000 1.00000
  I7 I 0.24325 0.50126 0.50000 1.00000
  I8 I 0.75675 0.50126 0.50000 1.00000
  I9 I 0.74325 0.49874 0.00000 1.00000
  I10 I 0.25675 0.49874 0.00000 1.00000
  I11 I 0.25449 0.00459 0.00000 1.00000
  I12 I 0.74551 0.00459 0.00000 1.00000
Get direct link