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Sm4Er2Mg

Alexandria ALEX

Alex-ID: agm017702556 · Space group: I4/mmm (#139)

Basic Information

Formula
Sm4Er2Mg
Alex-ID
agm017702556
Elements
3
Sites
7
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
219.52
ų
Cell a
16.9418
Å
Cell b
16.9418
Å
Cell c
16.9418
Å
α angle
167.73
°
β angle
167.73
°
γ angle
17.38
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm4Er2Mg
Sm
4.00 · 57.1%
Er
2.00 · 28.6%
Mg
1.00 · 14.3%

Energy & Stability

Energy above hull
0.0240
eV/atom
Formation energy
-0.0057
eV/atom
Corrected total energy
-29.6545
eV
Raw total energy
-29.6545
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0065
eV
DOS at Fermi level
9.7118
Total magnetisation
0.0035
μB

Additional Information

Prototype ID

AB2C4_2510_spg71

Decomposition

SmEr2 Sm SmMg

Computed at

2025-05-06 18:11:41

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: agm017702556).

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 agm017702556
data_agm017702556
_cell_length_a     16.94179
_cell_length_b     16.94179
_cell_length_c     16.94179
_cell_angle_alpha  167.73233
_cell_angle_beta   167.73233
_cell_angle_gamma  17.38257
_cell_volume       219.52321
_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 0.71172 0.71172 0.00000 1.00000
  Sm2 Sm 0.28828 0.28828 0.00000 1.00000
  Sm3 Sm 0.86545 0.86545 0.00000 1.00000
  Sm4 Sm 0.13455 0.13455 0.00000 1.00000
  Er1 Er 0.56160 0.56160 0.00000 1.00000
  Er2 Er 0.43840 0.43840 0.00000 1.00000
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
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