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Sm2PbSe

Alexandria ALEX

Alex-ID: agm005664598 · Space group: I4_1/amd (#141)

Basic Information

Formula
Sm2PbSe
Alex-ID
agm005664598
Elements
3
Sites
16
Space group
I4_1/amd (#141)
Crystal system
tetragonal
Volume
471.44
ų
Cell a
6.1865
Å
Cell b
6.1862
Å
Cell c
12.3185
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2PbSe
Sm
8.00 · 50.0%
Pb
4.00 · 25.0%
Se
4.00 · 25.0%

Energy & Stability

Energy above hull
0.0167
eV/atom
Formation energy
-1.1812
eV/atom
Corrected total energy
-85.4839
eV
Raw total energy
-85.4839
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1437
eV
DOS at Fermi level
3.8006
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2_790_spg15

Decomposition

SmPb2 Sm5Pb3Se Sm5Se6

Computed at

2023-07-13 12:03:51.712718

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: agm005664598).

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 agm005664598
data_agm005664598
_cell_length_a     6.18648
_cell_length_b     6.18617
_cell_length_c     12.31849
_cell_angle_alpha  90.00041
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       471.43612
_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 0.74988 0.99999 0.86862 1.00000
  Sm2 Sm 0.25012 0.00001 0.13138 1.00000
  Sm3 Sm 0.74988 0.50001 0.63138 1.00000
  Sm4 Sm 0.25012 0.49999 0.36862 1.00000
  Sm5 Sm 0.75011 0.49986 0.11862 1.00000
  Sm6 Sm 0.24989 0.50014 0.88138 1.00000
  Sm7 Sm 0.75011 0.00014 0.38138 1.00000
  Sm8 Sm 0.24989 0.99986 0.61862 1.00000
  Pb1 Pb 0.24987 0.49988 0.62503 1.00000
  Pb2 Pb 0.75013 0.50012 0.37497 1.00000
  Pb3 Pb 0.24987 0.00012 0.87497 1.00000
  Pb4 Pb 0.75013 0.99988 0.12503 1.00000
  Se1 Se 0.25024 0.00004 0.37498 1.00000
  Se2 Se 0.74976 0.99996 0.62502 1.00000
  Se3 Se 0.25024 0.49996 0.12502 1.00000
  Se4 Se 0.74976 0.50004 0.87498 1.00000
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