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Er2NpAs3

Alexandria ALEX

Alex-ID: agm005654737 · Space group: I4/mmm (#139)

Basic Information

Formula
Er2NpAs3
Alex-ID
agm005654737
Elements
3
Sites
6
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
144.79
ų
Cell a
4.0914
Å
Cell b
4.0913
Å
Cell c
9.1206
Å
α angle
102.96
°
β angle
102.96
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Er2NpAs3
Er
2.00 · 33.3%
Np
1.00 · 16.7%
As
3.00 · 50.0%

Energy & Stability

Energy above hull
0.0096
eV/atom
Formation energy
-1.2316
eV/atom
Corrected total energy
-43.4047
eV
Raw total energy
-43.4047
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0065
eV
DOS at Fermi level
9.5617
Total magnetisation
3.8119
μB

Additional Information

Prototype ID

AB2C3_103_spg139

Decomposition

NpAs ErAs

Computed at

2023-08-07 04:36:47.501290

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: agm005654737).

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 agm005654737
data_agm005654737
_cell_length_a     4.09139
_cell_length_b     4.09134
_cell_length_c     9.12056
_cell_angle_alpha  102.96180
_cell_angle_beta   102.96038
_cell_angle_gamma  89.99932
_cell_volume       144.78753
_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
  Er1 Er 0.10218 0.10349 0.20975 1.00000
  Er2 Er 0.76639 0.76771 0.53817 1.00000
  Np1 Np 0.43411 0.43585 0.87396 1.00000
  As1 As 0.93410 0.93587 0.87396 1.00000
  As2 As 0.26788 0.26919 0.54113 1.00000
  As3 As 0.60069 0.60201 0.20679 1.00000
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