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Sm2Tm4S9

Alexandria ALEX

Alex-ID: agm005643266 · Space group: P-3c1 (#165)

Basic Information

Formula
Sm2Tm4S9
Alex-ID
agm005643266
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
761.58
ų
Cell a
6.8998
Å
Cell b
6.9001
Å
Cell c
18.4707
Å
α angle
90.00
°
β angle
90.00
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2Tm4S9
Sm
4.00 · 13.3%
Tm
8.00 · 26.7%
S
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0353
eV/atom
Formation energy
-2.4453
eV/atom
Corrected total energy
-202.3202
eV
Raw total energy
-190.3779
eV

Electronic Structure

Indirect band gap
2.4927
eV
Direct band gap
2.6726
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_0_spg9

Decomposition

Sm(TmS2)3 Sm2S3

Computed at

2023-06-17 00:35:39.786040

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: agm005643266).

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 agm005643266
data_agm005643266
_cell_length_a     6.89983
_cell_length_b     6.90005
_cell_length_c     18.47069
_cell_angle_alpha  89.99745
_cell_angle_beta   90.00490
_cell_angle_gamma  60.00246
_cell_volume       761.57921
_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 0.99966 0.00010 0.35320 1.00000
  Sm2 Sm 0.99974 0.99984 0.14672 1.00000
  Sm3 Sm 0.00034 0.99990 0.64680 1.00000
  Sm4 Sm 0.00026 0.00016 0.85328 1.00000
  Tm1 Tm 0.33339 0.33336 0.98523 1.00000
  Tm2 Tm 0.33328 0.33334 0.48527 1.00000
  Tm3 Tm 0.66661 0.66664 0.01477 1.00000
  Tm4 Tm 0.33296 0.33331 0.18383 1.00000
  Tm5 Tm 0.66672 0.66666 0.51473 1.00000
  Tm6 Tm 0.66631 0.66665 0.31614 1.00000
  Tm7 Tm 0.33369 0.33335 0.68386 1.00000
  Tm8 Tm 0.66704 0.66669 0.81617 1.00000
  S1 S 0.00031 0.30790 0.75002 1.00000
  S2 S 0.30810 0.69211 0.75008 1.00000
  S3 S 0.69248 0.00005 0.75003 1.00000
  S4 S 0.99969 0.69210 0.24998 1.00000
  S5 S 0.69190 0.30789 0.24992 1.00000
  S6 S 0.30752 0.99995 0.24997 1.00000
  S7 S 0.65151 0.97105 0.41641 1.00000
  S8 S 0.97085 0.37724 0.41645 1.00000
  S9 S 0.37692 0.65201 0.41650 1.00000
  S10 S 0.62246 0.02897 0.08358 1.00000
  S11 S 0.34808 0.62272 0.08353 1.00000
  S12 S 0.02901 0.34782 0.08343 1.00000
  S13 S 0.34849 0.02895 0.58359 1.00000
  S14 S 0.02915 0.62276 0.58355 1.00000
  S15 S 0.62308 0.34799 0.58350 1.00000
  S16 S 0.37754 0.97103 0.91642 1.00000
  S17 S 0.65192 0.37728 0.91647 1.00000
  S18 S 0.97099 0.65218 0.91657 1.00000
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