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Sm2HfN3

Alexandria ALEX

Alex-ID: agm033240327 · Space group: Fddd (#70)

Basic Information

Formula
Sm2HfN3
Alex-ID
agm033240327
Elements
3
Sites
24
Space group
Fddd (#70)
Crystal system
orthorhombic
Volume
346.62
ų
Cell a
11.3900
Å
Cell b
10.8629
Å
Cell c
5.9704
Å
α angle
79.38
°
β angle
69.61
°
γ angle
31.01
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2HfN3
Sm
8.00 · 33.3%
Hf
4.00 · 16.7%
N
12.00 · 50.0%

Energy & Stability

Energy above hull
0.0059
eV/atom
Formation energy
-1.7958
eV/atom
Corrected total energy
-216.1309
eV
Raw total energy
-216.1309
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0476
eV
DOS at Fermi level
3.5117
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_36_spg70

Decomposition

Sm5HfN6 SmHfN2

Computed at

2025-04-15 07:30:14

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: agm033240327).

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 agm033240327
data_agm033240327
_cell_length_a     11.39002
_cell_length_b     10.86289
_cell_length_c     5.97038
_cell_angle_alpha  79.37548
_cell_angle_beta   69.61438
_cell_angle_gamma  31.01014
_cell_volume       346.62376
_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
  Sm1 Sm 0.99969 0.99969 0.50031 1.00000
  Sm2 Sm 0.41719 0.41719 0.58281 1.00000
  Sm3 Sm 0.83281 0.83281 0.66719 1.00000
  Sm4 Sm 0.25031 0.25031 0.74969 1.00000
  Sm5 Sm 0.74969 0.74969 0.25031 1.00000
  Sm6 Sm 0.66719 0.66719 0.83281 1.00000
  Sm7 Sm 0.58281 0.58281 0.41719 1.00000
  Sm8 Sm 0.50031 0.50031 0.99969 1.00000
  Hf1 Hf 0.91678 0.91678 0.08322 1.00000
  Hf2 Hf 0.33322 0.33322 0.16678 1.00000
  Hf3 Hf 0.16678 0.16678 0.33322 1.00000
  Hf4 Hf 0.08322 0.08322 0.91678 1.00000
  N1 N 0.66152 0.16149 0.86452 1.00000
  N2 N 0.16149 0.66152 0.31248 1.00000
  N3 N 0.58848 0.08851 0.38548 1.00000
  N4 N 0.08851 0.58848 0.93752 1.00000
  N5 N 0.46989 0.03011 0.03011 1.00000
  N6 N 0.03011 0.46989 0.46989 1.00000
  N7 N 0.93752 0.38548 0.08851 1.00000
  N8 N 0.38548 0.93752 0.58848 1.00000
  N9 N 0.31248 0.86452 0.16149 1.00000
  N10 N 0.86452 0.31248 0.66152 1.00000
  N11 N 0.78011 0.21989 0.21989 1.00000
  N12 N 0.21989 0.78011 0.78011 1.00000
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