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HfTaSi2Se

Alexandria ALEX

Alex-ID: agm001519082 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
HfTaSi2Se
Alex-ID
agm001519082
Elements
4
Sites
5
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
121.43
ų
Cell a
4.7957
Å
Cell b
5.2797
Å
Cell c
4.7957
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
HfTaSi2Se
Si
2.00 · 40.0%
Hf
1.00 · 20.0%
Se
1.00 · 20.0%
Ta
1.00 · 20.0%

Energy & Stability

Energy above hull
1.6011
eV/atom
Formation energy
0.7600
eV/atom
Corrected total energy
-32.3425
eV
Raw total energy
-32.3425
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.4329
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_2_spg123

Decomposition

Hf2Ta3Si4 HfSiSe TaSi2 HfSe2

Computed at

2016-11-11 14:35:22

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: agm001519082).

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 agm001519082
data_agm001519082
_cell_length_a     4.79572
_cell_length_b     5.27973
_cell_length_c     4.79572
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       121.42813
_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
  Si1 Si 0.00000 0.00000 0.50000 1.00000
  Si2 Si 0.50000 0.00000 0.00000 1.00000
  Hf1 Hf 0.00000 0.50000 0.00000 1.00000
  Se1 Se 0.50000 0.50000 0.50000 1.00000
  Ta1 Ta 0.00000 0.00000 0.00000 1.00000
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