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Pm2SmGd9

Alexandria ALEX

Alex-ID: agm101752124 · Space group: P6/mmm (#191)

Basic Information

Formula
Pm2SmGd9
Alex-ID
agm101752124
Elements
3
Sites
12
Space group
P6/mmm (#191)
Crystal system
hexagonal
Volume
397.15
ų
Cell a
11.3833
Å
Cell b
11.3833
Å
Cell c
3.5386
Å
α angle
90.00
°
β angle
90.00
°
γ angle
119.98
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm2SmGd9
Pm
2.00 · 16.7%
Sm
1.00 · 8.3%
Gd
9.00 · 75.0%

Energy & Stability

Energy above hull
0.0549
eV/atom
Formation energy
0.0546
eV/atom
Corrected total energy
-140.2972
eV
Raw total energy
-140.2972
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0001
eV
DOS at Fermi level
21.8532
Total magnetisation
66.9933
μB

Additional Information

Prototype ID

AB2C9_102_spg65

Decomposition

Pm PmSm2 Gd

Computed at

2025-05-20 13:51:16

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: agm101752124).

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 agm101752124
data_agm101752124
_cell_length_a     11.38330
_cell_length_b     11.38330
_cell_length_c     3.53855
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  119.98482
_cell_volume       397.15396
_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
  Pm1 Pm 0.33330 0.66670 0.00000 1.00000
  Pm2 Pm 0.66670 0.33330 0.00000 1.00000
  Sm1 Sm 0.00000 0.00000 0.00000 1.00000
  Gd1 Gd 0.17416 0.82584 0.50000 1.00000
  Gd2 Gd 0.00000 0.50000 0.00000 1.00000
  Gd3 Gd 0.50000 0.50000 0.00000 1.00000
  Gd4 Gd 0.17426 0.34850 0.50000 1.00000
  Gd5 Gd 0.82584 0.17416 0.50000 1.00000
  Gd6 Gd 0.34850 0.17426 0.50000 1.00000
  Gd7 Gd 0.82574 0.65150 0.50000 1.00000
  Gd8 Gd 0.50000 0.00000 0.00000 1.00000
  Gd9 Gd 0.65150 0.82574 0.50000 1.00000
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