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SmH3

Alexandria ALEX

Alex-ID: agm070904841 · Space group: Immm (#71)

Basic Information

Formula
SmH3
Alex-ID
agm070904841
Elements
2
Sites
32
Space group
Immm (#71)
Crystal system
orthorhombic
Volume
311.27
ų
Cell a
7.4154
Å
Cell b
7.4154
Å
Cell c
7.4154
Å
α angle
113.80
°
β angle
111.18
°
γ angle
103.60
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmH3
Sm
8.00 · 25.0%
H
24.00 · 75.0%

Energy & Stability

Energy above hull
0.0726
eV/atom
Formation energy
-0.6045
eV/atom
Corrected total energy
-134.8875
eV
Raw total energy
-134.8875
eV

Electronic Structure

Indirect band gap
0.4444
eV
Direct band gap
0.4444
eV
DOS at Fermi level
0.2231
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3_5148_spg71

Decomposition

SmH3

Computed at

2024-08-07 19:45:37.224425

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: agm070904841).

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 agm070904841
data_agm070904841
_cell_length_a     7.41538
_cell_length_b     7.41538
_cell_length_c     7.41538
_cell_angle_alpha  113.79671
_cell_angle_beta   111.18402
_cell_angle_gamma  103.60003
_cell_volume       311.27135
_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 0.73260 0.97252 0.23992 1.00000
  Sm2 Sm 0.74613 0.00000 0.74613 1.00000
  Sm3 Sm 0.26740 0.50732 0.23992 1.00000
  Sm4 Sm 0.24151 0.50000 0.74151 1.00000
  Sm5 Sm 0.73260 0.49268 0.76008 1.00000
  Sm6 Sm 0.25387 0.00000 0.25387 1.00000
  Sm7 Sm 0.26740 0.02748 0.76008 1.00000
  Sm8 Sm 0.75849 0.50000 0.25849 1.00000
  H1 H 0.83052 0.70227 0.12826 1.00000
  H2 H 0.88418 0.87952 0.51040 1.00000
  H3 H 0.39622 0.76793 0.62829 1.00000
  H4 H 0.36912 0.87952 0.99534 1.00000
  H5 H 0.11582 0.12048 0.48960 1.00000
  H6 H 0.50000 0.37247 0.87247 1.00000
  H7 H 0.63088 0.12048 0.00466 1.00000
  H8 H 0.00000 0.34346 0.34346 1.00000
  H9 H 0.60378 0.23207 0.37171 1.00000
  H10 H 0.50000 0.87707 0.37707 1.00000
  H11 H 0.16948 0.29773 0.87174 1.00000
  H12 H 0.00000 0.65654 0.65654 1.00000
  H13 H 0.57401 0.70227 0.87174 1.00000
  H14 H 0.36912 0.37378 0.48960 1.00000
  H15 H 0.13964 0.76793 0.37171 1.00000
  H16 H 0.88418 0.37378 0.00466 1.00000
  H17 H 0.63088 0.62622 0.51040 1.00000
  H18 H 0.50000 0.62753 0.12753 1.00000
  H19 H 0.11582 0.62622 0.99534 1.00000
  H20 H 0.11257 0.11257 0.00000 1.00000
  H21 H 0.86036 0.23207 0.62829 1.00000
  H22 H 0.50000 0.12293 0.62293 1.00000
  H23 H 0.42599 0.29773 0.12826 1.00000
  H24 H 0.88743 0.88743 0.00000 1.00000
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