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Pm2Sm4S9

Alexandria ALEX

Alex-ID: agm005643286 · Space group: P-3c1 (#165)

Basic Information

Formula
Pm2Sm4S9
Alex-ID
agm005643286
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
824.06
ų
Cell a
7.1092
Å
Cell b
7.1094
Å
Cell c
18.8266
Å
α angle
90.00
°
β angle
90.01
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm2Sm4S9
Pm
4.00 · 13.3%
Sm
8.00 · 26.7%
S
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0464
eV/atom
Formation energy
-2.4245
eV/atom
Corrected total energy
-203.8206
eV
Raw total energy
-191.8783
eV

Electronic Structure

Indirect band gap
2.4512
eV
Direct band gap
2.5962
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_0_spg9

Decomposition

PmSmS3 Sm2S3

Computed at

2023-06-17 00:43:09.765436

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: agm005643286).

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 agm005643286
data_agm005643286
_cell_length_a     7.10921
_cell_length_b     7.10941
_cell_length_c     18.82655
_cell_angle_alpha  89.99629
_cell_angle_beta   90.00516
_cell_angle_gamma  60.00106
_cell_volume       824.06363
_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
  Pm1 Pm 0.99968 0.00007 0.35297 1.00000
  Pm2 Pm 0.99975 0.99990 0.14692 1.00000
  Pm3 Pm 0.00032 0.99993 0.64703 1.00000
  Pm4 Pm 0.00025 0.00010 0.85308 1.00000
  Sm1 Sm 0.33339 0.33336 0.98129 1.00000
  Sm2 Sm 0.33328 0.33334 0.48136 1.00000
  Sm3 Sm 0.66661 0.66664 0.01871 1.00000
  Sm4 Sm 0.33295 0.33333 0.18603 1.00000
  Sm5 Sm 0.66672 0.66666 0.51864 1.00000
  Sm6 Sm 0.66633 0.66663 0.31394 1.00000
  Sm7 Sm 0.33367 0.33337 0.68606 1.00000
  Sm8 Sm 0.66705 0.66667 0.81397 1.00000
  S1 S 0.00037 0.29807 0.75004 1.00000
  S2 S 0.29831 0.70189 0.75008 1.00000
  S3 S 0.70225 0.00008 0.75004 1.00000
  S4 S 0.99963 0.70193 0.24996 1.00000
  S5 S 0.70169 0.29811 0.24992 1.00000
  S6 S 0.29775 0.99992 0.24996 1.00000
  S7 S 0.66372 0.96481 0.41643 1.00000
  S8 S 0.96465 0.37120 0.41648 1.00000
  S9 S 0.37097 0.66417 0.41652 1.00000
  S10 S 0.62846 0.03527 0.08353 1.00000
  S11 S 0.33584 0.62872 0.08349 1.00000
  S12 S 0.03531 0.33563 0.08339 1.00000
  S13 S 0.33628 0.03519 0.58357 1.00000
  S14 S 0.03535 0.62880 0.58352 1.00000
  S15 S 0.62903 0.33583 0.58348 1.00000
  S16 S 0.37154 0.96473 0.91647 1.00000
  S17 S 0.66416 0.37128 0.91651 1.00000
  S18 S 0.96469 0.66437 0.91661 1.00000
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