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KCaY(PO4)2

Alexandria ALEX

Alex-ID: agm010923552 · Space group: P6_2 (#171)

Basic Information

Formula
KCaY(PO4)2
Alex-ID
agm010923552
Elements
5
Sites
39
Space group
P6_2 (#171)
Crystal system
hexagonal
Volume
540.49
ų
Cell a
6.9618
Å
Cell b
6.9618
Å
Cell c
12.8768
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KCaY(PO4)2
K
3.00 · 7.7%
Ca
3.00 · 7.7%
Y
3.00 · 7.7%
P
6.00 · 15.4%
O
24.00 · 61.5%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-3.2670
eV/atom
Corrected total energy
-307.5698
eV
Raw total energy
-290.7149
eV

Electronic Structure

Indirect band gap
4.8711
eV
Direct band gap
4.9163
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2E8_12_spg172

Decomposition

KCaY(PO4)2

Computed at

2025-01-03 06:42:02

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: agm010923552).

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 agm010923552
data_agm010923552
_cell_length_a     6.96183
_cell_length_b     6.96183
_cell_length_c     12.87679
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       540.48624
_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 0.00000 0.00000 0.15448 1.00000
  K2 K 0.00000 0.00000 0.48781 1.00000
  K3 K 0.00000 0.00000 0.82114 1.00000
  Ca1 Ca 0.50000 0.00000 0.40949 1.00000
  Ca2 Ca 0.50000 0.50000 0.74282 1.00000
  Ca3 Ca 0.00000 0.50000 0.07616 1.00000
  Y1 Y 0.50000 0.00000 0.91697 1.00000
  Y2 Y 0.50000 0.50000 0.25030 1.00000
  Y3 Y 0.00000 0.50000 0.58363 1.00000
  P1 P 0.50000 0.00000 0.15796 1.00000
  P2 P 0.50000 0.00000 0.67333 1.00000
  P3 P 0.50000 0.50000 0.00666 1.00000
  P4 P 0.50000 0.50000 0.49129 1.00000
  P5 P 0.00000 0.50000 0.33999 1.00000
  P6 P 0.00000 0.50000 0.82462 1.00000
  O1 O 0.13368 0.69922 0.41507 1.00000
  O2 O 0.14072 0.70126 0.89650 1.00000
  O3 O 0.30035 0.86592 0.08373 1.00000
  O4 O 0.29838 0.85828 0.60187 1.00000
  O5 O 0.14172 0.44011 0.26854 1.00000
  O6 O 0.13408 0.43443 0.75039 1.00000
  O7 O 0.29874 0.43945 0.56316 1.00000
  O8 O 0.30078 0.43445 0.08174 1.00000
  O9 O 0.56055 0.85928 0.22983 1.00000
  O10 O 0.56555 0.86632 0.74841 1.00000
  O11 O 0.56557 0.69965 0.41706 1.00000
  O12 O 0.55989 0.70162 0.93521 1.00000
  O13 O 0.43443 0.30035 0.41706 1.00000
  O14 O 0.44011 0.29838 0.93521 1.00000
  O15 O 0.43945 0.14072 0.22983 1.00000
  O16 O 0.43445 0.13368 0.74841 1.00000
  O17 O 0.69922 0.56555 0.08174 1.00000
  O18 O 0.70126 0.56055 0.56316 1.00000
  O19 O 0.85828 0.55989 0.26854 1.00000
  O20 O 0.86592 0.56557 0.75039 1.00000
  O21 O 0.69965 0.13408 0.08373 1.00000
  O22 O 0.70162 0.14172 0.60187 1.00000
  O23 O 0.86632 0.30078 0.41507 1.00000
  O24 O 0.85928 0.29874 0.89650 1.00000
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