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K2Fe3(PO4)3

Alexandria ALEX

Alex-ID: agm021086751 · Space group: C2/c (#15)

Basic Information

Formula
K2Fe3(PO4)3
Alex-ID
agm021086751
Elements
4
Sites
40
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
484.46
ų
Cell a
8.9158
Å
Cell b
8.9158
Å
Cell c
6.6707
Å
α angle
73.92
°
β angle
73.92
°
γ angle
93.22
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Fe3(PO4)3
K
4.00 · 10.0%
Fe
6.00 · 15.0%
P
6.00 · 15.0%
O
24.00 · 60.0%

Energy & Stability

Energy above hull
0.0375
eV/atom
Formation energy
-2.4500
eV/atom
Corrected total energy
-304.6402
eV
Raw total energy
-271.3872
eV

Electronic Structure

Indirect band gap
0.3861
eV
Direct band gap
0.4010
eV
DOS at Fermi level
0.2337
Total magnetisation
26.0000
μB

Additional Information

Prototype ID

A2B3C3D12_84_spg15

Decomposition

K3Fe5(PO4)6 KFePO4 Fe3(PO4)2

Computed at

2024-11-10 16:20:31.011380

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: agm021086751).

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 agm021086751
data_agm021086751
_cell_length_a     8.91576
_cell_length_b     8.91576
_cell_length_c     6.67072
_cell_angle_alpha  73.91591
_cell_angle_beta   73.91591
_cell_angle_gamma  93.21710
_cell_volume       484.46408
_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 0.98652 0.01348 0.25000 1.00000
  K2 K 0.01348 0.98652 0.75000 1.00000
  K3 K 0.50000 0.50000 0.00000 1.00000
  K4 K 0.50000 0.50000 0.50000 1.00000
  Fe1 Fe 0.94038 0.61258 0.12723 1.00000
  Fe2 Fe 0.61258 0.94038 0.62723 1.00000
  Fe3 Fe 0.05962 0.38742 0.87277 1.00000
  Fe4 Fe 0.74091 0.25909 0.75000 1.00000
  Fe5 Fe 0.25909 0.74091 0.25000 1.00000
  Fe6 Fe 0.38742 0.05962 0.37277 1.00000
  P1 P 0.13111 0.35330 0.37973 1.00000
  P2 P 0.64670 0.86889 0.12027 1.00000
  P3 P 0.27732 0.72268 0.75000 1.00000
  P4 P 0.35330 0.13111 0.87973 1.00000
  P5 P 0.72268 0.27732 0.25000 1.00000
  P6 P 0.86889 0.64670 0.62027 1.00000
  O1 O 0.60088 0.95020 0.30591 1.00000
  O2 O 0.24866 0.54879 0.75939 1.00000
  O3 O 0.50810 0.74282 0.15927 1.00000
  O4 O 0.95020 0.60088 0.80591 1.00000
  O5 O 0.25718 0.49190 0.34073 1.00000
  O6 O 0.32023 0.00320 0.11042 1.00000
  O7 O 0.54879 0.24866 0.25939 1.00000
  O8 O 0.80150 0.79910 0.12530 1.00000
  O9 O 0.67977 0.99680 0.88958 1.00000
  O10 O 0.25076 0.83498 0.53846 1.00000
  O11 O 0.00320 0.32023 0.61042 1.00000
  O12 O 0.79910 0.80150 0.62530 1.00000
  O13 O 0.49190 0.25718 0.84073 1.00000
  O14 O 0.04980 0.39912 0.19409 1.00000
  O15 O 0.75134 0.45121 0.24061 1.00000
  O16 O 0.99680 0.67977 0.38958 1.00000
  O17 O 0.45121 0.75134 0.74061 1.00000
  O18 O 0.39912 0.04980 0.69409 1.00000
  O19 O 0.20090 0.19850 0.37470 1.00000
  O20 O 0.74924 0.16502 0.46154 1.00000
  O21 O 0.19850 0.20090 0.87470 1.00000
  O22 O 0.16502 0.74924 0.96154 1.00000
  O23 O 0.83498 0.25076 0.03846 1.00000
  O24 O 0.74282 0.50810 0.65927 1.00000
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