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Ca2Al7Au12

Alexandria ALEX

Alex-ID: agm005674382 · Space group: P-3 (#147)

Basic Information

Formula
Ca2Al7Au12
Alex-ID
agm005674382
Elements
3
Sites
21
Space group
P-3 (#147)
Crystal system
trigonal
Volume
403.20
ų
Cell a
4.2653
Å
Cell b
10.4476
Å
Cell c
10.4477
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2Al7Au12
Ca
2.00 · 9.5%
Al
7.00 · 33.3%
Au
12.00 · 57.1%

Energy & Stability

Energy above hull
0.0484
eV/atom
Formation energy
-0.4669
eV/atom
Corrected total energy
-79.3557
eV
Raw total energy
-79.3557
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
8.4980
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B7C12_5_spg147

Decomposition

AlAu Ca2(AlAu3)3 Al2Au

Computed at

2023-06-21 05:37:55.023826

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: agm005674382).

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 agm005674382
data_agm005674382
_cell_length_a     4.26530
_cell_length_b     10.44763
_cell_length_c     10.44771
_cell_angle_alpha  120.00047
_cell_angle_beta   90.00062
_cell_angle_gamma  89.99986
_cell_volume       403.19641
_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
  Ca1 Ca 0.24288 0.33333 0.66667 1.00000
  Ca2 Ca 0.75712 0.66667 0.33333 1.00000
  Al1 Al 0.50000 0.00000 0.00000 1.00000
  Al2 Al 0.26532 0.89608 0.29249 1.00000
  Al3 Al 0.26533 0.39642 0.10392 1.00000
  Al4 Al 0.26533 0.70751 0.60358 1.00000
  Al5 Al 0.73468 0.10392 0.70751 1.00000
  Al6 Al 0.73467 0.60358 0.89608 1.00000
  Al7 Al 0.73467 0.29249 0.39642 1.00000
  Au1 Au 0.24635 0.62354 0.07589 1.00000
  Au2 Au 0.24634 0.45234 0.37645 1.00000
  Au3 Au 0.24635 0.92411 0.54765 1.00000
  Au4 Au 0.75365 0.37646 0.92411 1.00000
  Au5 Au 0.75366 0.54766 0.62355 1.00000
  Au6 Au 0.75365 0.07589 0.45235 1.00000
  Au7 Au 0.23045 0.12843 0.26310 1.00000
  Au8 Au 0.23046 0.13467 0.87157 1.00000
  Au9 Au 0.23045 0.73690 0.86533 1.00000
  Au10 Au 0.76955 0.87157 0.73690 1.00000
  Au11 Au 0.76954 0.86533 0.12843 1.00000
  Au12 Au 0.76955 0.26310 0.13467 1.00000
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