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PmBeSi2Tc

Alexandria ALEX

Alex-ID: agm005019362 · Space group: I-4m2 (#119)

Basic Information

Formula
PmBeSi2Tc
Alex-ID
agm005019362
Elements
4
Sites
5
Space group
I-4m2 (#119)
Crystal system
tetragonal
Volume
82.89
ų
Cell a
3.9686
Å
Cell b
3.9686
Å
Cell c
5.9644
Å
α angle
109.43
°
β angle
109.43
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PmBeSi2Tc
Pm
1.00 · 20.0%
Be
1.00 · 20.0%
Si
2.00 · 40.0%
Tc
1.00 · 20.0%

Energy & Stability

Energy above hull
0.1554
eV/atom
Formation energy
-0.4703
eV/atom
Corrected total energy
-32.0405
eV
Raw total energy
-32.0405
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0078
eV
DOS at Fermi level
3.6103
Total magnetisation
0.0001
μB

Additional Information

Prototype ID

ABCD2_1563_spg119

Decomposition

Be2SiTc2 PmSi2Tc Pm3(BeSi2)2 Si7Tc4

Computed at

2022-07-03 23:05:42.508656

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: agm005019362).

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 agm005019362
data_agm005019362
_cell_length_a     3.96865
_cell_length_b     3.96865
_cell_length_c     5.96442
_cell_angle_alpha  109.43236
_cell_angle_beta   109.43236
_cell_angle_gamma  90.00000
_cell_volume       82.89319
_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 0.25000 0.75000 0.50000 1.00000
  Si1 Si 0.62121 0.62121 0.24241 1.00000
  Si2 Si 0.37879 0.37879 0.75759 1.00000
  Tc1 Tc 0.75000 0.25000 0.50000 1.00000
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