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Pm4Er3Se8

Alexandria ALEX

Alex-ID: agm005700599 · Space group: R-3m (#166)

Basic Information

Formula
Pm4Er3Se8
Alex-ID
agm005700599
Elements
3
Sites
15
Space group
R-3m (#166)
Crystal system
trigonal
Volume
432.25
ų
Cell a
8.0930
Å
Cell b
8.0930
Å
Cell c
8.9389
Å
α angle
63.08
°
β angle
63.08
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm4Er3Se8
Pm
4.00 · 26.7%
Er
3.00 · 20.0%
Se
8.00 · 53.3%

Energy & Stability

Energy above hull
0.2374
eV/atom
Formation energy
-1.6118
eV/atom
Corrected total energy
-84.7924
eV
Raw total energy
-84.7924
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
7.0709
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B4C8_7_spg166

Decomposition

Pm2(ErSe2)3 PmSe

Computed at

2023-06-29 18:52:59.326553

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: agm005700599).

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 agm005700599
data_agm005700599
_cell_length_a     8.09303
_cell_length_b     8.09303
_cell_length_c     8.93889
_cell_angle_alpha  63.08370
_cell_angle_beta   63.08371
_cell_angle_gamma  59.99998
_cell_volume       432.24811
_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 0.00000 0.00000 0.00000 1.00000
  Pm2 Pm 0.35394 0.35394 0.93819 1.00000
  Pm3 Pm 0.50000 0.50000 0.50000 1.00000
  Pm4 Pm 0.64606 0.64606 0.06181 1.00000
  Er1 Er 0.50000 0.00000 0.50000 1.00000
  Er2 Er 0.00000 0.00000 0.50000 1.00000
  Er3 Er 0.00000 0.50000 0.50000 1.00000
  Se1 Se 0.23110 0.23110 0.30669 1.00000
  Se2 Se 0.23542 0.74983 0.26492 1.00000
  Se3 Se 0.74983 0.74983 0.26492 1.00000
  Se4 Se 0.74983 0.23542 0.26492 1.00000
  Se5 Se 0.76890 0.76890 0.69331 1.00000
  Se6 Se 0.76458 0.25017 0.73508 1.00000
  Se7 Se 0.25017 0.25017 0.73508 1.00000
  Se8 Se 0.25017 0.76458 0.73508 1.00000
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