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Sm4HPb2

Alexandria ALEX

Alex-ID: agm003447682 · Space group: P2_1/m (#11)

Basic Information

Formula
Sm4HPb2
Alex-ID
agm003447682
Elements
3
Sites
14
Space group
P2_1/m (#11)
Crystal system
monoclinic
Volume
384.22
ų
Cell a
6.4804
Å
Cell b
6.6378
Å
Cell c
9.4698
Å
α angle
90.00
°
β angle
109.40
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm4HPb2
Sm
8.00 · 57.1%
H
2.00 · 14.3%
Pb
4.00 · 28.6%

Energy & Stability

Energy above hull
0.0702
eV/atom
Formation energy
-0.5053
eV/atom
Corrected total energy
-66.1759
eV
Raw total energy
-66.1759
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0007
eV
DOS at Fermi level
11.4051
Total magnetisation
-0.0095
μB

Additional Information

Prototype ID

AB2C4_1015_spg11

Decomposition

Sm5Pb3 SmH2 Sm

Computed at

2022-02-17 17:47:24.610743

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: agm003447682).

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 agm003447682
data_agm003447682
_cell_length_a     6.48040
_cell_length_b     6.63779
_cell_length_c     9.46976
_cell_angle_alpha  90.00000
_cell_angle_beta   109.40117
_cell_angle_gamma  90.00000
_cell_volume       384.21636
_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 0.53443 0.50060 0.29510 1.00000
  Sm2 Sm 0.12958 0.75000 0.94359 1.00000
  Sm3 Sm 0.87042 0.25000 0.05641 1.00000
  Sm4 Sm 0.53443 0.99940 0.29510 1.00000
  Sm5 Sm 0.93636 0.25000 0.65191 1.00000
  Sm6 Sm 0.46557 0.00060 0.70490 1.00000
  Sm7 Sm 0.46557 0.49940 0.70490 1.00000
  Sm8 Sm 0.06364 0.75000 0.34809 1.00000
  H1 H 0.28430 0.75000 0.20162 1.00000
  H2 H 0.71570 0.25000 0.79838 1.00000
  Pb1 Pb 0.68574 0.75000 0.03049 1.00000
  Pb2 Pb 0.31426 0.25000 0.96951 1.00000
  Pb3 Pb 0.15459 0.25000 0.39852 1.00000
  Pb4 Pb 0.84541 0.75000 0.60148 1.00000
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