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K4Ca15

Alexandria ALEX

Alex-ID: agm073025604 · Space group: I-43d (#220)

Basic Information

Formula
K4Ca15
Alex-ID
agm073025604
Elements
2
Sites
38
Space group
I-43d (#220)
Crystal system
cubic
Volume
1,775.65
ų
Cell a
13.2127
Å
Cell b
13.2127
Å
Cell c
13.2127
Å
α angle
109.47
°
β angle
109.47
°
γ angle
109.47
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K4Ca15
K
8.00 · 21.1%
Ca
30.00 · 78.9%

Energy & Stability

Energy above hull
0.1759
eV/atom
Formation energy
0.1759
eV/atom
Corrected total energy
-62.1967
eV
Raw total energy
-62.1967
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0392
eV
DOS at Fermi level
42.0037
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A4B15_2_spg220

Decomposition

Ca K

Computed at

2024-10-20 10:20:48

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: agm073025604).

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 agm073025604
data_agm073025604
_cell_length_a     13.21275
_cell_length_b     13.21275
_cell_length_c     13.21275
_cell_angle_alpha  109.47122
_cell_angle_beta   109.47122
_cell_angle_gamma  109.47122
_cell_volume       1775.65155
_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
  K1 K 0.50000 1.00000 0.58920 1.00000
  K2 K 1.00000 0.58920 0.50000 1.00000
  K3 K 0.50000 1.00000 0.08920 1.00000
  K4 K 0.41080 0.41080 0.41080 1.00000
  K5 K 0.91080 0.91080 0.91080 1.00000
  K6 K 1.00000 0.08920 0.50000 1.00000
  K7 K 0.08920 0.50000 1.00000 1.00000
  K8 K 0.58920 0.50000 1.00000 1.00000
  Ca1 Ca 0.70616 0.06534 0.93165 1.00000
  Ca2 Ca 0.75000 0.87500 0.12500 1.00000
  Ca3 Ca 0.14082 0.86631 0.43466 1.00000
  Ca4 Ca 0.72549 0.35918 0.79384 1.00000
  Ca5 Ca 0.56835 0.63369 0.77451 1.00000
  Ca6 Ca 0.22549 0.29384 0.85918 1.00000
  Ca7 Ca 0.79384 0.72549 0.35918 1.00000
  Ca8 Ca 0.36631 0.64082 0.93466 1.00000
  Ca9 Ca 0.06835 0.27451 0.13369 1.00000
  Ca10 Ca 0.93165 0.70616 0.06534 1.00000
  Ca11 Ca 0.43466 0.14082 0.86631 1.00000
  Ca12 Ca 0.29384 0.85918 0.22549 1.00000
  Ca13 Ca 0.12500 0.75000 0.87500 1.00000
  Ca14 Ca 0.35918 0.79384 0.72549 1.00000
  Ca15 Ca 0.37500 0.25000 0.62500 1.00000
  Ca16 Ca 0.13369 0.06835 0.27451 1.00000
  Ca17 Ca 0.93466 0.36631 0.64082 1.00000
  Ca18 Ca 0.43165 0.56534 0.20616 1.00000
  Ca19 Ca 0.64082 0.93466 0.36631 1.00000
  Ca20 Ca 0.62500 0.37500 0.25000 1.00000
  Ca21 Ca 0.06534 0.93165 0.70616 1.00000
  Ca22 Ca 0.86631 0.43466 0.14082 1.00000
  Ca23 Ca 0.85918 0.22549 0.29384 1.00000
  Ca24 Ca 0.77451 0.56835 0.63369 1.00000
  Ca25 Ca 0.56534 0.20616 0.43165 1.00000
  Ca26 Ca 0.63369 0.77451 0.56835 1.00000
  Ca27 Ca 0.20616 0.43165 0.56534 1.00000
  Ca28 Ca 0.25000 0.62500 0.37500 1.00000
  Ca29 Ca 0.27451 0.13369 0.06835 1.00000
  Ca30 Ca 0.87500 0.12500 0.75000 1.00000
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