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Np2TlAgSe4

Alexandria ALEX

Alex-ID: agm004777720 · Space group: Cmcm (#63)

Basic Information

Formula
Np2TlAgSe4
Alex-ID
agm004777720
Elements
4
Sites
16
Space group
Cmcm (#63)
Crystal system
orthorhombic
Volume
439.60
ų
Cell a
4.2281
Å
Cell b
7.3075
Å
Cell c
14.8635
Å
α angle
90.00
°
β angle
90.00
°
γ angle
106.82
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np2TlAgSe4
Np
4.00 · 25.0%
Tl
2.00 · 12.5%
Ag
2.00 · 12.5%
Se
8.00 · 50.0%

Energy & Stability

Energy above hull
0.0641
eV/atom
Formation energy
-0.8124
eV/atom
Corrected total energy
-103.1217
eV
Raw total energy
-103.1217
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0017
eV
DOS at Fermi level
44.6099
Total magnetisation
16.0000
μB

Additional Information

Prototype ID

ABC2D4_342_spg63

Decomposition

NpTl2Se3 NpTlAgSe3 Np2Se3 Ag

Computed at

2022-07-20 12:10:47.679752

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: agm004777720).

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 agm004777720
data_agm004777720
_cell_length_a     4.22808
_cell_length_b     7.30751
_cell_length_c     14.86355
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  106.81586
_cell_volume       439.59740
_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
  Np1 Np 0.37020 0.74040 0.56520 1.00000
  Np2 Np 0.62980 0.25960 0.06520 1.00000
  Np3 Np 0.62980 0.25960 0.43480 1.00000
  Np4 Np 0.37020 0.74040 0.93480 1.00000
  Tl1 Tl 0.12073 0.24147 0.75000 1.00000
  Tl2 Tl 0.87927 0.75853 0.25000 1.00000
  Ag1 Ag 0.83602 0.67205 0.75000 1.00000
  Ag2 Ag 0.16398 0.32795 0.25000 1.00000
  Se1 Se 0.26654 0.53308 0.10206 1.00000
  Se2 Se 0.73346 0.46692 0.60206 1.00000
  Se3 Se 0.73346 0.46692 0.89794 1.00000
  Se4 Se 0.26654 0.53308 0.39794 1.00000
  Se5 Se 0.00000 0.00000 0.50000 1.00000
  Se6 Se 0.00000 0.00000 0.00000 1.00000
  Se7 Se 0.44700 0.89400 0.75000 1.00000
  Se8 Se 0.55300 0.10600 0.25000 1.00000
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