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SmMgSe3

Alexandria ALEX

Alex-ID: agm005505860 · Space group: C2/m (#12)

Basic Information

Formula
SmMgSe3
Alex-ID
agm005505860
Elements
3
Sites
10
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
284.97
ų
Cell a
7.3467
Å
Cell b
7.3467
Å
Cell c
6.4006
Å
α angle
73.02
°
β angle
73.02
°
γ angle
108.06
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmMgSe3
Sm
2.00 · 20.0%
Mg
2.00 · 20.0%
Se
6.00 · 60.0%

Energy & Stability

Energy above hull
0.3262
eV/atom
Formation energy
-1.1460
eV/atom
Corrected total energy
-45.0400
eV
Raw total energy
-45.0400
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0160
eV
DOS at Fermi level
3.6208
Total magnetisation
0.0001
μB

Additional Information

Prototype ID

ABC3_4419_spg12

Decomposition

Sm10Se19 MgSe Se

Computed at

2023-03-20 07:47:01.186652

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: agm005505860).

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 agm005505860
data_agm005505860
_cell_length_a     7.34670
_cell_length_b     7.34670
_cell_length_c     6.40065
_cell_angle_alpha  73.01792
_cell_angle_beta   73.01792
_cell_angle_gamma  108.05797
_cell_volume       284.96765
_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
  Sm1 Sm 0.77091 0.77091 0.18862 1.00000
  Sm2 Sm 0.22909 0.22909 0.81138 1.00000
  Mg1 Mg 0.67092 0.32908 0.00000 1.00000
  Mg2 Mg 0.32908 0.67092 0.00000 1.00000
  Se1 Se 0.86901 0.18107 0.23200 1.00000
  Se2 Se 0.13099 0.81893 0.76800 1.00000
  Se3 Se 0.81893 0.13099 0.76800 1.00000
  Se4 Se 0.18107 0.86901 0.23200 1.00000
  Se5 Se 0.59778 0.59778 0.69963 1.00000
  Se6 Se 0.40222 0.40222 0.30037 1.00000
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