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BaSm2Ge2O7F2

Alexandria ALEX

Alex-ID: agm010706992 · Space group: P-1 (#2)

Basic Information

Formula
BaSm2Ge2O7F2
Alex-ID
agm010706992
Elements
5
Sites
28
Space group
P-1 (#2)
Crystal system
triclinic
Volume
424.35
ų
Cell a
5.4284
Å
Cell b
7.1019
Å
Cell c
12.2340
Å
α angle
93.96
°
β angle
101.55
°
γ angle
111.59
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
BaSm2Ge2O7F2
Ba
2.00 · 7.1%
Sm
4.00 · 14.3%
Ge
4.00 · 14.3%
O
14.00 · 50.0%
F
4.00 · 14.3%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-3.2698
eV/atom
Corrected total energy
-207.8435
eV
Raw total energy
-198.0114
eV

Electronic Structure

Indirect band gap
3.8578
eV
Direct band gap
3.8578
eV
DOS at Fermi level
0.0000
Total magnetisation
-0.0001
μB

Additional Information

Prototype ID

AB2C2D2E7_4_spg2

Decomposition

BaSm2Ge2O7F2

Computed at

2024-10-31 17:43:40.469767

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: agm010706992).

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 agm010706992
data_agm010706992
_cell_length_a     5.42841
_cell_length_b     7.10186
_cell_length_c     12.23400
_cell_angle_alpha  93.96227
_cell_angle_beta   101.54932
_cell_angle_gamma  111.59299
_cell_volume       424.35420
_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
  Ba1 Ba 0.58137 0.37461 0.74580 1.00000
  Ba2 Ba 0.41863 0.62539 0.25420 1.00000
  Sm1 Sm 0.33013 0.79882 0.87302 1.00000
  Sm2 Sm 0.66987 0.20118 0.12698 1.00000
  Sm3 Sm 0.18536 0.80363 0.54257 1.00000
  Sm4 Sm 0.81464 0.19637 0.45743 1.00000
  Ge1 Ge 0.77874 0.93424 0.71632 1.00000
  Ge2 Ge 0.22126 0.06576 0.28368 1.00000
  Ge3 Ge 0.13118 0.25442 0.94061 1.00000
  Ge4 Ge 0.86882 0.74558 0.05939 1.00000
  O1 O 0.79838 0.07251 0.85132 1.00000
  O2 O 0.20162 0.92749 0.14868 1.00000
  O3 O 0.37584 0.14074 0.94910 1.00000
  O4 O 0.62416 0.85926 0.05090 1.00000
  O5 O 0.08221 0.31194 0.07358 1.00000
  O6 O 0.91779 0.68806 0.92642 1.00000
  O7 O 0.22026 0.44865 0.85681 1.00000
  O8 O 0.77974 0.55135 0.14319 1.00000
  O9 O 0.47302 0.71621 0.70443 1.00000
  O10 O 0.52698 0.28379 0.29557 1.00000
  O11 O 0.65825 0.06315 0.61393 1.00000
  O12 O 0.34175 0.93685 0.38607 1.00000
  O13 O 0.07846 0.89629 0.71521 1.00000
  O14 O 0.92154 0.10371 0.28479 1.00000
  F1 F 0.79164 0.82428 0.44734 1.00000
  F2 F 0.20836 0.17572 0.55266 1.00000
  F3 F 0.14385 0.51464 0.42455 1.00000
  F4 F 0.85615 0.48536 0.57545 1.00000
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