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Ca4Si9Pt7

Alexandria ALEX

Alex-ID: agm008596186 · Space group: C2 (#5)

Basic Information

Formula
Ca4Si9Pt7
Alex-ID
agm008596186
Elements
3
Sites
20
Space group
C2 (#5)
Crystal system
monoclinic
Volume
354.07
ų
Cell a
8.3293
Å
Cell b
8.3293
Å
Cell c
5.8978
Å
α angle
69.99
°
β angle
69.99
°
γ angle
93.32
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca4Si9Pt7
Ca
4.00 · 20.0%
Si
9.00 · 45.0%
Pt
7.00 · 35.0%

Energy & Stability

Energy above hull
0.0327
eV/atom
Formation energy
-0.8463
eV/atom
Corrected total energy
-116.3577
eV
Raw total energy
-116.3577
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1323
eV
DOS at Fermi level
7.0260
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A4B7C9_4_spg5

Decomposition

Ca2Si5Pt3 Ca(SiPt)2

Computed at

2024-04-10 18:31:07.293600

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: agm008596186).

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 agm008596186
data_agm008596186
_cell_length_a     8.32930
_cell_length_b     8.32930
_cell_length_c     5.89783
_cell_angle_alpha  69.98617
_cell_angle_beta   69.98617
_cell_angle_gamma  93.32378
_cell_volume       354.06988
_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 0.11303 0.37482 0.50632 1.00000
  Ca2 Ca 0.89676 0.64131 0.98536 1.00000
  Ca3 Ca 0.62518 0.88697 0.49368 1.00000
  Ca4 Ca 0.35869 0.10324 0.01464 1.00000
  Si1 Si 0.77241 0.53955 0.59351 1.00000
  Si2 Si 0.25264 0.47012 0.88031 1.00000
  Si3 Si 0.46045 0.22759 0.40649 1.00000
  Si4 Si 0.52988 0.74736 0.11969 1.00000
  Si5 Si 0.99333 0.00667 0.00000 1.00000
  Si6 Si 0.98232 0.01768 0.50000 1.00000
  Si7 Si 0.73047 0.26953 0.00000 1.00000
  Si8 Si 0.73410 0.26590 0.50000 1.00000
  Si9 Si 0.26833 0.73167 0.50000 1.00000
  Pt1 Pt 0.01523 0.77277 0.36945 1.00000
  Pt2 Pt 0.98106 0.26251 0.12439 1.00000
  Pt3 Pt 0.22723 0.98477 0.63055 1.00000
  Pt4 Pt 0.73749 0.01894 0.87561 1.00000
  Pt5 Pt 0.51492 0.48508 0.50000 1.00000
  Pt6 Pt 0.51962 0.48038 0.00000 1.00000
  Pt7 Pt 0.28725 0.71275 0.00000 1.00000
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