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SmAl(NiH4)2

Alexandria ALEX

Alex-ID: agm007449684 · Space group: C2/m (#12)

Basic Information

Formula
SmAl(NiH4)2
Alex-ID
agm007449684
Elements
4
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
93.26
ų
Cell a
4.4130
Å
Cell b
4.4130
Å
Cell c
6.2867
Å
α angle
64.39
°
β angle
64.39
°
γ angle
61.88
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmAl(NiH4)2
Sm
1.00 · 8.3%
Al
1.00 · 8.3%
Ni
2.00 · 16.7%
H
8.00 · 66.7%

Energy & Stability

Energy above hull
0.1650
eV/atom
Formation energy
-0.2354
eV/atom
Corrected total energy
-48.7791
eV
Raw total energy
-48.7791
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1006
eV
DOS at Fermi level
2.6955
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D8_14_spg1

Decomposition

AlH9 SmH3 Sm(NiH3)2 AlNi

Computed at

2024-08-07 23:15:59.067746

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: agm007449684).

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 agm007449684
data_agm007449684
_cell_length_a     4.41303
_cell_length_b     4.41303
_cell_length_c     6.28670
_cell_angle_alpha  64.38660
_cell_angle_beta   64.38660
_cell_angle_gamma  61.88276
_cell_volume       93.26453
_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 0.50000 0.50000 0.50000 1.00000
  Al1 Al 0.00000 0.00000 0.00000 1.00000
  Ni1 Ni 0.31720 0.31720 0.15185 1.00000
  Ni2 Ni 0.68280 0.68280 0.84815 1.00000
  H1 H 0.91906 0.91906 0.68613 1.00000
  H2 H 0.70017 0.70017 0.08041 1.00000
  H3 H 0.08094 0.08094 0.31387 1.00000
  H4 H 0.29983 0.29983 0.91959 1.00000
  H5 H 0.07655 0.60396 0.29910 1.00000
  H6 H 0.92345 0.39604 0.70090 1.00000
  H7 H 0.60396 0.07655 0.29910 1.00000
  H8 H 0.39604 0.92345 0.70090 1.00000
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