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Na4Ca2NbP4

Alexandria ALEX

Alex-ID: agm020182291 · Space group: Cc (#9)

Basic Information

Formula
Na4Ca2NbP4
Alex-ID
agm020182291
Elements
4
Sites
22
Space group
Cc (#9)
Crystal system
monoclinic
Volume
536.41
ų
Cell a
9.2836
Å
Cell b
9.2836
Å
Cell c
7.1716
Å
α angle
88.79
°
β angle
91.21
°
γ angle
60.30
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na4Ca2NbP4
Na
8.00 · 36.4%
Ca
4.00 · 18.2%
Nb
2.00 · 9.1%
P
8.00 · 36.4%

Energy & Stability

Energy above hull
0.0657
eV/atom
Formation energy
-0.6677
eV/atom
Corrected total energy
-96.6691
eV
Raw total energy
-96.6691
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0389
eV
DOS at Fermi level
10.1927
Total magnetisation
1.5135
μB

Additional Information

Prototype ID

AB2C4D4_82_spg1

Decomposition

Na5CaNbP4 NaCaP NbP

Computed at

2025-03-16 08:26:09

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: agm020182291).

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 agm020182291
data_agm020182291
_cell_length_a     9.28363
_cell_length_b     9.28363
_cell_length_c     7.17156
_cell_angle_alpha  88.79109
_cell_angle_beta   91.20891
_cell_angle_gamma  60.29867
_cell_volume       536.40863
_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
  Na1 Na 0.93090 0.53175 0.61077 1.00000
  Na2 Na 0.46825 0.06910 0.11077 1.00000
  Na3 Na 0.72502 0.13614 0.80436 1.00000
  Na4 Na 0.13090 0.72807 0.75565 1.00000
  Na5 Na 0.13641 0.14215 0.78291 1.00000
  Na6 Na 0.27193 0.86910 0.25565 1.00000
  Na7 Na 0.86386 0.27498 0.30436 1.00000
  Na8 Na 0.85785 0.86359 0.28291 1.00000
  Ca1 Ca 0.53364 0.93565 0.60236 1.00000
  Ca2 Ca 0.52958 0.52464 0.62281 1.00000
  Ca3 Ca 0.06435 0.46636 0.10236 1.00000
  Ca4 Ca 0.47536 0.47042 0.12281 1.00000
  Nb1 Nb 0.33010 0.33181 0.50162 1.00000
  Nb2 Nb 0.66819 0.66990 0.00162 1.00000
  P1 P 0.33507 0.35102 0.83881 1.00000
  P2 P 0.64898 0.66493 0.33881 1.00000
  P3 P 0.38684 0.80214 0.87051 1.00000
  P4 P 0.80864 0.38184 0.90909 1.00000
  P5 P 0.81444 0.80497 0.89085 1.00000
  P6 P 0.61816 0.19136 0.40909 1.00000
  P7 P 0.19786 0.61316 0.37051 1.00000
  P8 P 0.19503 0.18556 0.39085 1.00000
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