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SmY2Ho2Mg5

Alexandria ALEX

Alex-ID: agm005135757 · Space group: P4/mbm (#127)

Alexandria Database API

Basic Information

Formula
SmY2Ho2Mg5
Alex-ID
agm005135757
Elements
4
Sites
20
Space group
P4/mbm (#127)
Crystal system
tetragonal
Volume
574.52
ų
Cell a
5.0857
Å
Cell b
10.6286
Å
Cell c
10.6286
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmY2Ho2Mg5
Sm
2.00 · 10.0%
Y
4.00 · 20.0%
Ho
4.00 · 20.0%
Mg
10.00 · 50.0%

Energy & Stability

Energy above hull
0.1723
eV/atom
Formation energy
0.0756
eV/atom
Corrected total energy
-68.0478
eV
Raw total energy
-68.0478
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0111
eV
DOS at Fermi level
19.0397
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D5_50_spg127

Decomposition

SmHoMg2 YHoMg2 SmYMg2

Computed at

2022-07-14 23:52:06.519369

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: agm005135757).

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 agm005135757
data_agm005135757
_cell_length_a     5.08574
_cell_length_b     10.62858
_cell_length_c     10.62858
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       574.51883
_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 0.00000 0.00000 0.00000 1.00000
  Sm2 Sm 0.00000 0.50000 0.50000 1.00000
  Y1 Y 0.00000 0.67856 0.17856 1.00000
  Y2 Y 0.00000 0.32144 0.82144 1.00000
  Y3 Y 0.00000 0.17856 0.32144 1.00000
  Y4 Y 0.00000 0.82144 0.67856 1.00000
  Ho1 Ho 0.00000 0.11795 0.61795 1.00000
  Ho2 Ho 0.00000 0.88205 0.38205 1.00000
  Ho3 Ho 0.00000 0.61795 0.88205 1.00000
  Ho4 Ho 0.00000 0.38205 0.11795 1.00000
  Mg1 Mg 0.50000 0.19859 0.07033 1.00000
  Mg2 Mg 0.50000 0.80141 0.92967 1.00000
  Mg3 Mg 0.50000 0.07033 0.80141 1.00000
  Mg4 Mg 0.50000 0.69859 0.42967 1.00000
  Mg5 Mg 0.50000 0.92967 0.19859 1.00000
  Mg6 Mg 0.50000 0.30141 0.57033 1.00000
  Mg7 Mg 0.50000 0.57033 0.69859 1.00000
  Mg8 Mg 0.50000 0.42967 0.30141 1.00000
  Mg9 Mg 0.50000 0.50000 0.00000 1.00000
  Mg10 Mg 0.50000 0.00000 0.50000 1.00000
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