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Sr3AlGe2

Alexandria ALEX

Alex-ID: agm005672911 · Space group: Pnma (#62)

Basic Information

Formula
Sr3AlGe2
Alex-ID
agm005672911
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
738.76
ų
Cell a
4.4490
Å
Cell b
13.1904
Å
Cell c
12.5887
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sr3AlGe2
Sr
12.00 · 50.0%
Al
4.00 · 16.7%
Ge
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0428
eV/atom
Formation energy
-0.4925
eV/atom
Corrected total energy
-84.0149
eV
Raw total energy
-84.0149
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0074
eV
DOS at Fermi level
14.4743
Total magnetisation
-0.0040
μB

Additional Information

Prototype ID

AB2C3_315_spg62

Decomposition

Sr3(AlGe)2 Sr2Ge SrGe

Computed at

2023-08-07 04:25:33.935743

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: agm005672911).

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 agm005672911
data_agm005672911
_cell_length_a     4.44897
_cell_length_b     13.19042
_cell_length_c     12.58874
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       738.75521
_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
  Sr1 Sr 0.25000 0.38507 0.07311 1.00000
  Sr2 Sr 0.75000 0.61493 0.92689 1.00000
  Sr3 Sr 0.75000 0.88507 0.42689 1.00000
  Sr4 Sr 0.25000 0.11493 0.57311 1.00000
  Sr5 Sr 0.25000 0.69758 0.18833 1.00000
  Sr6 Sr 0.75000 0.30242 0.81167 1.00000
  Sr7 Sr 0.75000 0.19758 0.31167 1.00000
  Sr8 Sr 0.25000 0.80242 0.68833 1.00000
  Sr9 Sr 0.25000 0.44422 0.37669 1.00000
  Sr10 Sr 0.75000 0.55578 0.62331 1.00000
  Sr11 Sr 0.75000 0.94422 0.12331 1.00000
  Sr12 Sr 0.25000 0.05578 0.87669 1.00000
  Al1 Al 0.25000 0.14144 0.13990 1.00000
  Al2 Al 0.75000 0.85856 0.86010 1.00000
  Al3 Al 0.75000 0.64144 0.36010 1.00000
  Al4 Al 0.25000 0.35856 0.63990 1.00000
  Ge1 Ge 0.25000 0.68091 0.46272 1.00000
  Ge2 Ge 0.75000 0.31909 0.53728 1.00000
  Ge3 Ge 0.75000 0.18091 0.03728 1.00000
  Ge4 Ge 0.25000 0.81909 0.96272 1.00000
  Ge5 Ge 0.25000 0.01882 0.30232 1.00000
  Ge6 Ge 0.75000 0.98118 0.69768 1.00000
  Ge7 Ge 0.75000 0.51882 0.19768 1.00000
  Ge8 Ge 0.25000 0.48118 0.80232 1.00000
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