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SmMg(CuH2)4

Alexandria ALEX

Alex-ID: agm006965062 · Space group: R3m (#160)

Basic Information

Formula
SmMg(CuH2)4
Alex-ID
agm006965062
Elements
4
Sites
14
Space group
R3m (#160)
Crystal system
trigonal
Volume
141.60
ų
Cell a
6.6125
Å
Cell b
6.6125
Å
Cell c
6.6125
Å
α angle
47.05
°
β angle
47.05
°
γ angle
47.05
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmMg(CuH2)4
Sm
1.00 · 7.1%
Mg
1.00 · 7.1%
Cu
4.00 · 28.6%
H
8.00 · 57.1%

Energy & Stability

Energy above hull
0.3042
eV/atom
Formation energy
0.0329
eV/atom
Corrected total energy
-48.4146
eV
Raw total energy
-48.4146
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
3.7115
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4D8_5_spg160

Decomposition

MgH6 SmH3 MgH2 Cu

Computed at

2024-10-14 15:33:44.263709

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: agm006965062).

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 agm006965062
data_agm006965062
_cell_length_a     6.61252
_cell_length_b     6.61252
_cell_length_c     6.61252
_cell_angle_alpha  47.04676
_cell_angle_beta   47.04676
_cell_angle_gamma  47.04676
_cell_volume       141.59885
_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 0.99558 0.99558 0.99558 1.00000
  Mg1 Mg 0.39789 0.39789 0.39789 1.00000
  Cu1 Cu 0.60712 0.60712 0.60712 1.00000
  Cu2 Cu 0.00032 0.50269 0.00032 1.00000
  Cu3 Cu 0.00032 0.00032 0.50269 1.00000
  Cu4 Cu 0.50269 0.00032 0.00032 1.00000
  H1 H 0.24545 0.81502 0.24545 1.00000
  H2 H 0.24545 0.24545 0.81502 1.00000
  H3 H 0.81502 0.24545 0.24545 1.00000
  H4 H 0.21932 0.21932 0.21932 1.00000
  H5 H 0.73138 0.22657 0.73138 1.00000
  H6 H 0.73138 0.73138 0.22657 1.00000
  H7 H 0.22657 0.73138 0.73138 1.00000
  H8 H 0.78149 0.78149 0.78149 1.00000
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