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SrNp(AsO4)2

Alexandria ALEX

Alex-ID: agm004878956 · Space group: P-3m1 (#164)

Alexandria Database API

Basic Information

Formula
SrNp(AsO4)2
Alex-ID
agm004878956
Elements
4
Sites
12
Space group
P-3m1 (#164)
Crystal system
trigonal
Volume
204.14
ų
Cell a
5.6676
Å
Cell b
5.6676
Å
Cell c
7.3382
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SrNp(AsO4)2
Sr
1.00 · 8.3%
Np
1.00 · 8.3%
As
2.00 · 16.7%
O
8.00 · 66.7%

Energy & Stability

Energy above hull
0.1220
eV/atom
Formation energy
-2.4707
eV/atom
Corrected total energy
-93.2428
eV
Raw total energy
-87.6245
eV

Electronic Structure

Indirect band gap
0.0098
eV
Direct band gap
0.0222
eV
DOS at Fermi level
9.4852
Total magnetisation
3.0000
μB

Additional Information

Prototype ID

ABC2D8_520_spg164

Decomposition

Sr2As2O7 Sr3Np11O36 Sr(AsO3)2 As2O3

Computed at

2023-01-01 22:25:12.530593

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: agm004878956).

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 agm004878956
data_agm004878956
_cell_length_a     5.66763
_cell_length_b     5.66763
_cell_length_c     7.33820
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       204.13786
_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
  Sr1 Sr 0.00000 0.00000 0.00000 1.00000
  Np1 Np 0.00000 0.00000 0.50000 1.00000
  As1 As 0.66667 0.33333 0.21475 1.00000
  As2 As 0.33333 0.66667 0.78525 1.00000
  O1 O 0.33333 0.66667 0.01377 1.00000
  O2 O 0.33622 0.16064 0.29893 1.00000
  O3 O 0.83936 0.17557 0.29893 1.00000
  O4 O 0.66667 0.33333 0.98623 1.00000
  O5 O 0.16064 0.82443 0.70107 1.00000
  O6 O 0.66378 0.83936 0.70107 1.00000
  O7 O 0.17557 0.33622 0.70107 1.00000
  O8 O 0.82443 0.66378 0.29893 1.00000
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