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PmBeSi2Ir

Alexandria ALEX

Alex-ID: agm005018973 · Space group: I-4m2 (#119)

Basic Information

Formula
PmBeSi2Ir
Alex-ID
agm005018973
Elements
4
Sites
5
Space group
I-4m2 (#119)
Crystal system
tetragonal
Volume
81.30
ų
Cell a
3.9603
Å
Cell b
3.9603
Å
Cell c
5.8915
Å
α angle
109.64
°
β angle
109.64
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PmBeSi2Ir
Pm
1.00 · 20.0%
Be
1.00 · 20.0%
Si
2.00 · 40.0%
Ir
1.00 · 20.0%

Energy & Stability

Energy above hull
0.0702
eV/atom
Formation energy
-0.7390
eV/atom
Corrected total energy
-31.8787
eV
Raw total energy
-31.8787
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.3421
eV
DOS at Fermi level
2.5045
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_1563_spg119

Decomposition

Be5Ir Pm3(BeSi2)2 Pm2Si5Ir3

Computed at

2022-07-03 23:03:45.746135

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: agm005018973).

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 agm005018973
data_agm005018973
_cell_length_a     3.96030
_cell_length_b     3.96030
_cell_length_c     5.89148
_cell_angle_alpha  109.63969
_cell_angle_beta   109.63969
_cell_angle_gamma  90.00000
_cell_volume       81.29631
_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
  Be1 Be 0.75000 0.25000 0.50000 1.00000
  Si1 Si 0.61951 0.61951 0.23903 1.00000
  Si2 Si 0.38049 0.38049 0.76097 1.00000
  Ir1 Ir 0.25000 0.75000 0.50000 1.00000
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