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Tb4Sm2Te9

Alexandria ALEX

Alex-ID: agm005643801 · Space group: P-3c1 (#165)

Basic Information

Formula
Tb4Sm2Te9
Alex-ID
agm005643801
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
1,111.06
ų
Cell a
7.7704
Å
Cell b
7.7707
Å
Cell c
21.2464
Å
α angle
90.00
°
β angle
90.01
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Tb4Sm2Te9
Tb
8.00 · 26.7%
Sm
4.00 · 13.3%
Te
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0564
eV/atom
Formation energy
-1.3703
eV/atom
Corrected total energy
-153.6123
eV
Raw total energy
-153.6123
eV

Electronic Structure

Indirect band gap
1.2336
eV
Direct band gap
1.2745
eV
DOS at Fermi level
-0.0017
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_141_spg2

Decomposition

Sm2Te3 Tb2Te3

Computed at

2023-06-17 00:39:09.008035

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: agm005643801).

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 agm005643801
data_agm005643801
_cell_length_a     7.77042
_cell_length_b     7.77067
_cell_length_c     21.24641
_cell_angle_alpha  89.99979
_cell_angle_beta   90.00767
_cell_angle_gamma  60.00391
_cell_volume       1111.05782
_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
  Tb1 Tb 0.33337 0.33336 0.99042 1.00000
  Tb2 Tb 0.33331 0.33330 0.49043 1.00000
  Tb3 Tb 0.66663 0.66664 0.00958 1.00000
  Tb4 Tb 0.33295 0.33334 0.17693 1.00000
  Tb5 Tb 0.66669 0.66670 0.50957 1.00000
  Tb6 Tb 0.66638 0.66657 0.32301 1.00000
  Tb7 Tb 0.33362 0.33343 0.67699 1.00000
  Tb8 Tb 0.66705 0.66666 0.82307 1.00000
  Sm1 Sm 0.99973 0.00007 0.34461 1.00000
  Sm2 Sm 0.99981 0.99980 0.15532 1.00000
  Sm3 Sm 0.00027 0.99993 0.65539 1.00000
  Sm4 Sm 0.00019 0.00020 0.84468 1.00000
  Te1 Te 0.00021 0.31556 0.75000 1.00000
  Te2 Te 0.31564 0.68457 0.75009 1.00000
  Te3 Te 0.68475 0.00006 0.75003 1.00000
  Te4 Te 0.99979 0.68444 0.25000 1.00000
  Te5 Te 0.68436 0.31543 0.24991 1.00000
  Te6 Te 0.31525 0.99994 0.24997 1.00000
  Te7 Te 0.66025 0.98015 0.41652 1.00000
  Te8 Te 0.98000 0.35942 0.41655 1.00000
  Te9 Te 0.35913 0.66066 0.41661 1.00000
  Te10 Te 0.64032 0.01982 0.08346 1.00000
  Te11 Te 0.33950 0.64053 0.08344 1.00000
  Te12 Te 0.01989 0.33907 0.08329 1.00000
  Te13 Te 0.33975 0.01985 0.58348 1.00000
  Te14 Te 0.02000 0.64058 0.58345 1.00000
  Te15 Te 0.64087 0.33934 0.58339 1.00000
  Te16 Te 0.35968 0.98018 0.91654 1.00000
  Te17 Te 0.66050 0.35947 0.91656 1.00000
  Te18 Te 0.98011 0.66093 0.91671 1.00000
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