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Sm2Tl3AgSe6

Alexandria ALEX

Alex-ID: agm004635900 · Space group: C2/m (#12)

Basic Information

Formula
Sm2Tl3AgSe6
Alex-ID
agm004635900
Elements
4
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
341.51
ų
Cell a
7.2887
Å
Cell b
7.2887
Å
Cell c
7.7948
Å
α angle
99.28
°
β angle
99.28
°
γ angle
119.49
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2Tl3AgSe6
Sm
2.00 · 16.7%
Tl
3.00 · 25.0%
Ag
1.00 · 8.3%
Se
6.00 · 50.0%

Energy & Stability

Energy above hull
0.0854
eV/atom
Formation energy
-0.8995
eV/atom
Corrected total energy
-51.1350
eV
Raw total energy
-51.1350
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0091
eV
DOS at Fermi level
6.7656
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3D6_175_spg12

Decomposition

TlAgSe2 SmTlSe2

Computed at

2022-06-29 07:14:52.167680

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: agm004635900).

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 agm004635900
data_agm004635900
_cell_length_a     7.28867
_cell_length_b     7.28867
_cell_length_c     7.79480
_cell_angle_alpha  99.27573
_cell_angle_beta   99.27573
_cell_angle_gamma  119.48889
_cell_volume       341.50943
_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 0.33468 0.66532 0.00000 1.00000
  Sm2 Sm 0.66532 0.33468 0.00000 1.00000
  Tl1 Tl 0.17809 0.82191 0.50000 1.00000
  Tl2 Tl 0.82191 0.17809 0.50000 1.00000
  Tl3 Tl 0.50000 0.50000 0.50000 1.00000
  Ag1 Ag 0.00000 0.00000 0.00000 1.00000
  Se1 Se 0.92831 0.60487 0.78758 1.00000
  Se2 Se 0.73469 0.73469 0.23470 1.00000
  Se3 Se 0.07169 0.39513 0.21242 1.00000
  Se4 Se 0.60487 0.92831 0.78758 1.00000
  Se5 Se 0.26531 0.26531 0.76530 1.00000
  Se6 Se 0.39513 0.07169 0.21242 1.00000
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