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MgAg4Ge2Se7

Alexandria ALEX

Alex-ID: agm020116484 · Space group: Cc (#9)

Basic Information

Formula
MgAg4Ge2Se7
Alex-ID
agm020116484
Elements
4
Sites
28
Space group
Cc (#9)
Crystal system
monoclinic
Volume
742.04
ų
Cell a
10.0022
Å
Cell b
10.0022
Å
Cell c
11.0555
Å
α angle
86.91
°
β angle
93.09
°
γ angle
137.78
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MgAg4Ge2Se7
Mg
2.00 · 7.1%
Ag
8.00 · 28.6%
Ge
4.00 · 14.3%
Se
14.00 · 50.0%

Energy & Stability

Energy above hull
0.0011
eV/atom
Formation energy
-0.3437
eV/atom
Corrected total energy
-102.9619
eV
Raw total energy
-102.9619
eV

Electronic Structure

Indirect band gap
0.2714
eV
Direct band gap
0.2864
eV
DOS at Fermi level
1.3979
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4D7_12_spg9

Decomposition

MgAg2GeSe4 GeSe2 Ag8GeSe6

Computed at

2025-03-05 07:03:16

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: agm020116484).

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 agm020116484
data_agm020116484
_cell_length_a     10.00217
_cell_length_b     10.00217
_cell_length_c     11.05546
_cell_angle_alpha  86.91319
_cell_angle_beta   93.08681
_cell_angle_gamma  137.77658
_cell_volume       742.03605
_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
  Mg1 Mg 0.02974 0.32693 0.29100 1.00000
  Mg2 Mg 0.67307 0.97026 0.79100 1.00000
  Ag1 Ag 0.17257 0.17438 0.99601 1.00000
  Ag2 Ag 0.82562 0.82743 0.49601 1.00000
  Ag3 Ag 0.39198 0.27536 0.37570 1.00000
  Ag4 Ag 0.72464 0.60802 0.87570 1.00000
  Ag5 Ag 0.53197 0.10422 0.10529 1.00000
  Ag6 Ag 0.89578 0.46803 0.60529 1.00000
  Ag7 Ag 0.40539 0.84596 0.44895 1.00000
  Ag8 Ag 0.15404 0.59461 0.94895 1.00000
  Ge1 Ge 0.60346 0.74802 0.16702 1.00000
  Ge2 Ge 0.25198 0.39654 0.66702 1.00000
  Ge3 Ge 0.96851 0.68849 0.24432 1.00000
  Ge4 Ge 0.31151 0.03149 0.74432 1.00000
  Se1 Se 0.20214 0.13561 0.58938 1.00000
  Se2 Se 0.86439 0.79786 0.08938 1.00000
  Se3 Se 0.31001 0.97510 0.29164 1.00000
  Se4 Se 0.02490 0.68999 0.79164 1.00000
  Se5 Se 0.91912 0.44546 0.14334 1.00000
  Se6 Se 0.55454 0.08088 0.64334 1.00000
  Se7 Se 0.53757 0.87066 0.00987 1.00000
  Se8 Se 0.12934 0.46243 0.50987 1.00000
  Se9 Se 0.71613 0.94506 0.34208 1.00000
  Se10 Se 0.05494 0.28387 0.84208 1.00000
  Se11 Se 0.60339 0.68961 0.69885 1.00000
  Se12 Se 0.31039 0.39661 0.19885 1.00000
  Se13 Se 0.77932 0.55097 0.42224 1.00000
  Se14 Se 0.44903 0.22068 0.92224 1.00000
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