Navigation

HEAS Data Platform · Materials Science Database

K3Np(PO4)2

Alexandria ALEX

Alex-ID: agm011665576 · Space group: P-3 (#147)

Basic Information

Formula
K3Np(PO4)2
Alex-ID
agm011665576
Elements
4
Sites
42
Space group
P-3 (#147)
Crystal system
trigonal
Volume
687.30
ų
Cell a
9.9270
Å
Cell b
9.9270
Å
Cell c
8.0534
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K3Np(PO4)2
K
9.00 · 21.4%
Np
3.00 · 7.1%
P
6.00 · 14.3%
O
24.00 · 57.1%

Energy & Stability

Energy above hull
0.0375
eV/atom
Formation energy
-2.7867
eV/atom
Corrected total energy
-317.2412
eV
Raw total energy
-300.3862
eV

Electronic Structure

Indirect band gap
0.2702
eV
Direct band gap
0.2837
eV
DOS at Fermi level
13.2715
Total magnetisation
12.0000
μB

Additional Information

Prototype ID

AB2C3D8_21_spg1

Decomposition

KP15 K2Np2(PO4)3 K4P2O7 NpO2

Computed at

2024-07-13 00:28:55.294956

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: agm011665576).

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 agm011665576
data_agm011665576
_cell_length_a     9.92703
_cell_length_b     9.92703
_cell_length_c     8.05338
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       687.30160
_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 0.33449 0.33487 0.26930 1.00000
  K2 K 0.00038 0.66551 0.26930 1.00000
  K3 K 0.66513 0.99962 0.26930 1.00000
  K4 K 0.66551 0.66513 0.73070 1.00000
  K5 K 0.99962 0.33449 0.73070 1.00000
  K6 K 0.33487 0.00038 0.73070 1.00000
  K7 K 0.33333 0.66667 0.50366 1.00000
  K8 K 0.66667 0.33333 0.49634 1.00000
  K9 K 0.00000 0.00000 0.50000 1.00000
  Np1 Np 0.33333 0.66667 0.03800 1.00000
  Np2 Np 0.66667 0.33333 0.96200 1.00000
  Np3 Np 0.00000 0.00000 0.00000 1.00000
  P1 P 0.32612 0.34115 0.76288 1.00000
  P2 P 0.01502 0.67388 0.76288 1.00000
  P3 P 0.65885 0.98498 0.76288 1.00000
  P4 P 0.67388 0.65885 0.23712 1.00000
  P5 P 0.98498 0.32612 0.23712 1.00000
  P6 P 0.34115 0.01502 0.23712 1.00000
  O1 O 0.33339 0.46616 0.88732 1.00000
  O2 O 0.13277 0.66661 0.88732 1.00000
  O3 O 0.53384 0.86723 0.88732 1.00000
  O4 O 0.66661 0.53384 0.11268 1.00000
  O5 O 0.86723 0.33339 0.11268 1.00000
  O6 O 0.46616 0.13277 0.11268 1.00000
  O7 O 0.48272 0.33918 0.77318 1.00000
  O8 O 0.85646 0.51728 0.77318 1.00000
  O9 O 0.66082 0.14354 0.77318 1.00000
  O10 O 0.51728 0.66082 0.22682 1.00000
  O11 O 0.14354 0.48272 0.22682 1.00000
  O12 O 0.33918 0.85646 0.22682 1.00000
  O13 O 0.19078 0.17663 0.81598 1.00000
  O14 O 0.98584 0.80922 0.81598 1.00000
  O15 O 0.82337 0.01416 0.81598 1.00000
  O16 O 0.80922 0.82337 0.18402 1.00000
  O17 O 0.01416 0.19078 0.18402 1.00000
  O18 O 0.17663 0.98584 0.18402 1.00000
  O19 O 0.37919 0.08419 0.41234 1.00000
  O20 O 0.91581 0.29500 0.41234 1.00000
  O21 O 0.70500 0.62081 0.41234 1.00000
  O22 O 0.62081 0.91581 0.58766 1.00000
  O23 O 0.08419 0.70500 0.58766 1.00000
  O24 O 0.29500 0.37919 0.58766 1.00000
Get direct link