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KMgCr(SeO4)3

Alexandria ALEX

Alex-ID: agm010220737 · Space group: R-3 (#148)

Alexandria Database API

Basic Information

Formula
KMgCr(SeO4)3
Alex-ID
agm010220737
Elements
5
Sites
36
Space group
R-3 (#148)
Crystal system
trigonal
Volume
535.37
ų
Cell a
9.5498
Å
Cell b
9.5498
Å
Cell c
9.5498
Å
α angle
54.40
°
β angle
54.40
°
γ angle
54.40
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KMgCr(SeO4)3
K
2.00 · 5.6%
Mg
2.00 · 5.6%
Cr
2.00 · 5.6%
Se
6.00 · 16.7%
O
24.00 · 66.7%

Energy & Stability

Energy above hull
0.0084
eV/atom
Formation energy
-1.6801
eV/atom
Corrected total energy
-225.0661
eV
Raw total energy
-204.1852
eV

Electronic Structure

Indirect band gap
2.6967
eV
Direct band gap
2.7111
eV
DOS at Fermi level
0.0000
Total magnetisation
5.8471
μB

Additional Information

Prototype ID

ABCD3E12_6_spg148

Decomposition

KCr(SeO4)2 MgSeO4

Computed at

2024-12-28 10:18:52

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: agm010220737).

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 agm010220737
data_agm010220737
_cell_length_a     9.54979
_cell_length_b     9.54979
_cell_length_c     9.54979
_cell_angle_alpha  54.39753
_cell_angle_beta   54.39753
_cell_angle_gamma  54.39753
_cell_volume       535.37003
_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 0.00000 0.00000 0.00000 1.00000
  K2 K 0.50000 0.50000 0.50000 1.00000
  Mg1 Mg 0.34836 0.34836 0.34836 1.00000
  Mg2 Mg 0.65164 0.65164 0.65164 1.00000
  Cr1 Cr 0.85253 0.85253 0.85253 1.00000
  Cr2 Cr 0.14747 0.14747 0.14747 1.00000
  Se1 Se 0.96717 0.24415 0.53722 1.00000
  Se2 Se 0.24415 0.53722 0.96717 1.00000
  Se3 Se 0.53722 0.96717 0.24415 1.00000
  Se4 Se 0.03283 0.75585 0.46278 1.00000
  Se5 Se 0.75585 0.46278 0.03283 1.00000
  Se6 Se 0.46278 0.03283 0.75585 1.00000
  O1 O 0.01824 0.79390 0.62307 1.00000
  O2 O 0.79390 0.62307 0.01824 1.00000
  O3 O 0.62307 0.01824 0.79390 1.00000
  O4 O 0.98176 0.20610 0.37693 1.00000
  O5 O 0.20610 0.37693 0.98176 1.00000
  O6 O 0.37693 0.98176 0.20610 1.00000
  O7 O 0.20551 0.52378 0.16708 1.00000
  O8 O 0.52378 0.16708 0.20551 1.00000
  O9 O 0.16708 0.20551 0.52378 1.00000
  O10 O 0.79449 0.47622 0.83292 1.00000
  O11 O 0.47622 0.83292 0.79449 1.00000
  O12 O 0.83292 0.79449 0.47622 1.00000
  O13 O 0.87713 0.09733 0.74636 1.00000
  O14 O 0.09733 0.74636 0.87713 1.00000
  O15 O 0.74636 0.87713 0.09733 1.00000
  O16 O 0.12287 0.90267 0.25364 1.00000
  O17 O 0.90267 0.25364 0.12287 1.00000
  O18 O 0.25364 0.12287 0.90267 1.00000
  O19 O 0.54303 0.47792 0.18765 1.00000
  O20 O 0.47792 0.18765 0.54303 1.00000
  O21 O 0.18765 0.54303 0.47792 1.00000
  O22 O 0.45697 0.52208 0.81235 1.00000
  O23 O 0.52208 0.81235 0.45697 1.00000
  O24 O 0.81235 0.45697 0.52208 1.00000
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