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K4SmTl3(GeO3)8

Alexandria ALEX

Alex-ID: agm011065663 · Space group: C2 (#5)

Basic Information

Formula
K4SmTl3(GeO3)8
Alex-ID
agm011065663
Elements
5
Sites
40
Space group
C2 (#5)
Crystal system
monoclinic
Volume
593.94
ų
Cell a
8.4372
Å
Cell b
8.4372
Å
Cell c
10.7515
Å
α angle
62.11
°
β angle
117.89
°
γ angle
107.94
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K4SmTl3(GeO3)8
K
4.00 · 10.0%
Sm
1.00 · 2.5%
Tl
3.00 · 7.5%
Ge
8.00 · 20.0%
O
24.00 · 60.0%

Energy & Stability

Energy above hull
0.0269
eV/atom
Formation energy
-2.0689
eV/atom
Corrected total energy
-254.9246
eV
Raw total energy
-238.0697
eV

Electronic Structure

Indirect band gap
1.6392
eV
Direct band gap
1.7048
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0003
μB

Additional Information

Prototype ID

AB3C4D8E24_16_spg5

Decomposition

K4Sm2Ge4O13 K4Ge9O20 Sm2Ge2O7 Tl2O3

Computed at

2025-01-23 02:14:49

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: agm011065663).

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 agm011065663
data_agm011065663
_cell_length_a     8.43719
_cell_length_b     8.43719
_cell_length_c     10.75147
_cell_angle_alpha  62.10586
_cell_angle_beta   117.89414
_cell_angle_gamma  107.93580
_cell_volume       593.93980
_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
  K1 K 0.56177 0.56177 0.50000 1.00000
  K2 K 0.05835 0.05835 0.00000 1.00000
  K3 K 0.94086 0.44469 0.24828 1.00000
  K4 K 0.44469 0.94086 0.75172 1.00000
  Sm1 Sm 0.98463 0.98463 0.50000 1.00000
  Tl1 Tl 0.48579 0.48579 0.00000 1.00000
  Tl2 Tl 0.50818 0.01447 0.24613 1.00000
  Tl3 Tl 0.01447 0.50818 0.75387 1.00000
  Ge1 Ge 0.27526 0.30871 0.70045 1.00000
  Ge2 Ge 0.76688 0.80482 0.19680 1.00000
  Ge3 Ge 0.30871 0.27526 0.29955 1.00000
  Ge4 Ge 0.80482 0.76688 0.80320 1.00000
  Ge5 Ge 0.22885 0.69563 0.04941 1.00000
  Ge6 Ge 0.72637 0.19387 0.55025 1.00000
  Ge7 Ge 0.19387 0.72637 0.44975 1.00000
  Ge8 Ge 0.69563 0.22885 0.95059 1.00000
  O1 O 0.15292 0.11637 0.66769 1.00000
  O2 O 0.65002 0.60266 0.17710 1.00000
  O3 O 0.11637 0.15292 0.33231 1.00000
  O4 O 0.60266 0.65002 0.82290 1.00000
  O5 O 0.34681 0.89912 0.06651 1.00000
  O6 O 0.85074 0.39313 0.57410 1.00000
  O7 O 0.39313 0.85074 0.42590 1.00000
  O8 O 0.89912 0.34681 0.93349 1.00000
  O9 O 0.22537 0.49302 0.51639 1.00000
  O10 O 0.72009 0.99244 0.01500 1.00000
  O11 O 0.49302 0.22537 0.48361 1.00000
  O12 O 0.99244 0.72009 0.98500 1.00000
  O13 O 0.28137 0.51085 0.23224 1.00000
  O14 O 0.77942 0.00496 0.73266 1.00000
  O15 O 0.00496 0.77942 0.26734 1.00000
  O16 O 0.51085 0.28137 0.76776 1.00000
  O17 O 0.24780 0.35463 0.83455 1.00000
  O18 O 0.73941 0.85671 0.32680 1.00000
  O19 O 0.35463 0.24780 0.16545 1.00000
  O20 O 0.85671 0.73941 0.67320 1.00000
  O21 O 0.25379 0.64690 0.91564 1.00000
  O22 O 0.74852 0.14326 0.41766 1.00000
  O23 O 0.14326 0.74852 0.58234 1.00000
  O24 O 0.64690 0.25379 0.08436 1.00000
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