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Na4Nd2I9

Alexandria ALEX

Alex-ID: agm005645075 · Space group: P-3c1 (#165)

Basic Information

Formula
Na4Nd2I9
Alex-ID
agm005645075
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
1,239.53
ų
Cell a
8.1280
Å
Cell b
8.1288
Å
Cell c
21.6642
Å
α angle
90.01
°
β angle
90.02
°
γ angle
59.99
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na4Nd2I9
Na
8.00 · 26.7%
Nd
4.00 · 13.3%
I
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0325
eV/atom
Formation energy
-1.2821
eV/atom
Corrected total energy
-96.0071
eV
Raw total energy
-96.0071
eV

Electronic Structure

Indirect band gap
0.6577
eV
Direct band gap
0.6611
eV
DOS at Fermi level
-0.6628
Total magnetisation
2.0006
μB

Additional Information

Prototype ID

A2B4C9_141_spg2

Decomposition

NdI2 NdI3 NaI

Computed at

2023-06-15 11:57:06.371706

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: agm005645075).

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 agm005645075
data_agm005645075
_cell_length_a     8.12796
_cell_length_b     8.12878
_cell_length_c     21.66418
_cell_angle_alpha  90.01177
_cell_angle_beta   90.02055
_cell_angle_gamma  59.99497
_cell_volume       1239.53191
_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 0.33339 0.33348 0.98481 1.00000
  Na2 Na 0.33353 0.33358 0.48479 1.00000
  Na3 Na 0.66661 0.66652 0.01519 1.00000
  Na4 Na 0.33243 0.33359 0.17095 1.00000
  Na5 Na 0.66647 0.66642 0.51521 1.00000
  Na6 Na 0.66583 0.66703 0.32923 1.00000
  Na7 Na 0.33417 0.33297 0.67077 1.00000
  Na8 Na 0.66757 0.66641 0.82905 1.00000
  Nd1 Nd 0.99933 0.00042 0.33731 1.00000
  Nd2 Nd 0.99956 0.00008 0.16256 1.00000
  Nd3 Nd 0.00067 0.99958 0.66269 1.00000
  Nd4 Nd 0.00044 0.99992 0.83744 1.00000
  I1 I 0.00098 0.31855 0.75007 1.00000
  I2 I 0.31933 0.68041 0.75015 1.00000
  I3 I 0.68147 0.99983 0.75001 1.00000
  I4 I 0.99902 0.68145 0.24993 1.00000
  I5 I 0.68067 0.31959 0.24985 1.00000
  I6 I 0.31853 0.00017 0.24999 1.00000
  I7 I 0.68035 0.97919 0.41465 1.00000
  I8 I 0.97863 0.34044 0.41469 1.00000
  I9 I 0.33957 0.68128 0.41471 1.00000
  I10 I 0.65903 0.02129 0.08532 1.00000
  I11 I 0.31899 0.65963 0.08537 1.00000
  I12 I 0.02105 0.31879 0.08513 1.00000
  I13 I 0.31965 0.02081 0.58535 1.00000
  I14 I 0.02137 0.65956 0.58531 1.00000
  I15 I 0.66043 0.31872 0.58529 1.00000
  I16 I 0.34097 0.97871 0.91468 1.00000
  I17 I 0.68101 0.34037 0.91463 1.00000
  I18 I 0.97895 0.68121 0.91487 1.00000
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