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AcTcGeO

Alexandria ALEX

Alex-ID: agm005202074 · Space group: P4/nmm (#129)

Alexandria Database API

Basic Information

Formula
AcTcGeO
Alex-ID
agm005202074
Elements
4
Sites
8
Space group
P4/nmm (#129)
Crystal system
tetragonal
Volume
165.01
ų
Cell a
4.3641
Å
Cell b
4.3641
Å
Cell c
8.6641
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
AcTcGeO
Ac
2.00 · 25.0%
Tc
2.00 · 25.0%
Ge
2.00 · 25.0%
O
2.00 · 25.0%

Energy & Stability

Energy above hull
0.1041
eV/atom
Formation energy
-1.6825
eV/atom
Corrected total energy
-61.5598
eV
Raw total energy
-60.1552
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0017
eV
DOS at Fermi level
5.2248
Total magnetisation
1.0370
μB

Additional Information

Prototype ID

ABCD_1467_spg129

Decomposition

Ac(TcGe)2 TcGe Ac2O3

Computed at

2022-07-10 15:56:03.859407

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: agm005202074).

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 agm005202074
data_agm005202074
_cell_length_a     4.36407
_cell_length_b     4.36407
_cell_length_c     8.66409
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       165.00852
_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 0.50000 0.00000 0.64164 1.00000
  Ac2 Ac 0.00000 0.50000 0.35836 1.00000
  Tc1 Tc 0.50000 0.50000 0.00000 1.00000
  Tc2 Tc 0.00000 0.00000 0.00000 1.00000
  Ge1 Ge 0.00000 0.50000 0.86909 1.00000
  Ge2 Ge 0.50000 0.00000 0.13091 1.00000
  O1 O 0.00000 0.00000 0.50000 1.00000
  O2 O 0.50000 0.50000 0.50000 1.00000
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