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AcPmGe4

Alexandria ALEX

Alex-ID: agm005777296 · Space group: Pbam (#55)

Basic Information

Formula
AcPmGe4
Alex-ID
agm005777296
Elements
3
Sites
24
Space group
Pbam (#55)
Crystal system
orthorhombic
Volume
604.91
ų
Cell a
4.3309
Å
Cell b
7.8515
Å
Cell c
17.7893
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
AcPmGe4
Ac
4.00 · 16.7%
Pm
4.00 · 16.7%
Ge
16.00 · 66.7%

Energy & Stability

Energy above hull
0.0912
eV/atom
Formation energy
-0.5637
eV/atom
Corrected total energy
-122.8435
eV
Raw total energy
-122.8435
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0366
eV
DOS at Fermi level
7.4875
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4_915_spg55

Decomposition

Pm3Ge5 AcGe2 Ge

Computed at

2023-07-28 13:33:37.882693

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: agm005777296).

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 agm005777296
data_agm005777296
_cell_length_a     4.33090
_cell_length_b     7.85153
_cell_length_c     17.78930
_cell_angle_alpha  89.99999
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       604.91093
_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
  Ac1 Ac 0.00000 0.64234 0.33081 1.00000
  Ac2 Ac 0.00000 0.35766 0.66919 1.00000
  Ac3 Ac 0.00000 0.14234 0.16919 1.00000
  Ac4 Ac 0.00000 0.85766 0.83081 1.00000
  Pm1 Pm 0.00000 0.64413 0.08495 1.00000
  Pm2 Pm 0.00000 0.35587 0.91505 1.00000
  Pm3 Pm 0.00000 0.14413 0.41505 1.00000
  Pm4 Pm 0.00000 0.85587 0.58495 1.00000
  Ge1 Ge 0.50000 0.80056 0.19745 1.00000
  Ge2 Ge 0.50000 0.19944 0.80255 1.00000
  Ge3 Ge 0.50000 0.30056 0.30255 1.00000
  Ge4 Ge 0.50000 0.69944 0.69745 1.00000
  Ge5 Ge 0.50000 0.92264 0.06505 1.00000
  Ge6 Ge 0.50000 0.07736 0.93495 1.00000
  Ge7 Ge 0.50000 0.42264 0.43495 1.00000
  Ge8 Ge 0.50000 0.57736 0.56505 1.00000
  Ge9 Ge 0.50000 0.84131 0.45952 1.00000
  Ge10 Ge 0.50000 0.15869 0.54048 1.00000
  Ge11 Ge 0.50000 0.34131 0.04048 1.00000
  Ge12 Ge 0.50000 0.65869 0.95952 1.00000
  Ge13 Ge 0.50000 0.97603 0.31717 1.00000
  Ge14 Ge 0.50000 0.02397 0.68283 1.00000
  Ge15 Ge 0.50000 0.47603 0.18283 1.00000
  Ge16 Ge 0.50000 0.52397 0.81717 1.00000
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