Navigation

HEAS Data Platform · Materials Science Database

Ho2MgSe4

Alexandria ALEX

Alex-ID: agm005289527 · Space group: P-1 (#2)

Basic Information

Formula
Ho2MgSe4
Alex-ID
agm005289527
Elements
3
Sites
28
Space group
P-1 (#2)
Crystal system
triclinic
Volume
879.86
ų
Cell a
7.4450
Å
Cell b
8.6100
Å
Cell c
13.9410
Å
α angle
98.58
°
β angle
95.22
°
γ angle
90.13
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho2MgSe4
Ho
8.00 · 28.6%
Mg
4.00 · 14.3%
Se
16.00 · 57.1%

Energy & Stability

Energy above hull
0.1972
eV/atom
Formation energy
-1.5084
eV/atom
Corrected total energy
-141.0911
eV
Raw total energy
-141.0911
eV

Electronic Structure

Indirect band gap
2.2428
eV
Direct band gap
2.2433
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_347_spg2

Decomposition

Ho2Se3 MgSe

Computed at

2023-05-11 18:41:49.677253

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: agm005289527).

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 agm005289527
data_agm005289527
_cell_length_a     7.44500
_cell_length_b     8.60997
_cell_length_c     13.94099
_cell_angle_alpha  98.57533
_cell_angle_beta   95.22493
_cell_angle_gamma  90.12725
_cell_volume       879.85997
_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
  Ho1 Ho 0.86488 0.30184 0.69997 1.00000
  Ho2 Ho 0.13512 0.69816 0.30003 1.00000
  Ho3 Ho 0.75625 0.12724 0.99937 1.00000
  Ho4 Ho 0.24375 0.87276 0.00063 1.00000
  Ho5 Ho 0.63273 0.44308 0.29641 1.00000
  Ho6 Ho 0.36727 0.55692 0.70359 1.00000
  Ho7 Ho 0.63339 0.95540 0.30101 1.00000
  Ho8 Ho 0.36661 0.04460 0.69899 1.00000
  Mg1 Mg 0.86621 0.80361 0.70898 1.00000
  Mg2 Mg 0.13379 0.19639 0.29102 1.00000
  Mg3 Mg 0.75071 0.62056 0.99511 1.00000
  Mg4 Mg 0.24929 0.37944 0.00489 1.00000
  Se1 Se 0.90723 0.35503 0.89579 1.00000
  Se2 Se 0.09277 0.64497 0.10421 1.00000
  Se3 Se 0.89321 0.84440 0.89533 1.00000
  Se4 Se 0.10679 0.15560 0.10467 1.00000
  Se5 Se 0.83046 0.21842 0.37161 1.00000
  Se6 Se 0.16954 0.78158 0.62839 1.00000
  Se7 Se 0.80892 0.71694 0.37632 1.00000
  Se8 Se 0.19108 0.28306 0.62368 1.00000
  Se9 Se 0.69482 0.02310 0.62929 1.00000
  Se10 Se 0.30518 0.97690 0.37071 1.00000
  Se11 Se 0.69271 0.54547 0.63066 1.00000
  Se12 Se 0.30729 0.45453 0.36934 1.00000
  Se13 Se 0.60426 0.89732 0.10470 1.00000
  Se14 Se 0.39574 0.10268 0.89530 1.00000
  Se15 Se 0.59673 0.40456 0.10054 1.00000
  Se16 Se 0.40327 0.59544 0.89946 1.00000
Get direct link