Navigation

HEAS Data Platform · Materials Science Database

Mg4HIr

Alexandria ALEX

Alex-ID: agm006138593 · Space group: I4 (#79)

Basic Information

Formula
Mg4HIr
Alex-ID
agm006138593
Elements
3
Sites
6
Space group
I4 (#79)
Crystal system
tetragonal
Volume
109.22
ų
Cell a
5.2214
Å
Cell b
5.7813
Å
Cell c
5.2251
Å
α angle
123.70
°
β angle
108.00
°
γ angle
56.34
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg4HIr
Mg
4.00 · 66.7%
H
1.00 · 16.7%
Ir
1.00 · 16.7%

Energy & Stability

Energy above hull
0.0179
eV/atom
Formation energy
-0.2945
eV/atom
Corrected total energy
-20.2461
eV
Raw total energy
-20.2461
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.2293
eV
DOS at Fermi level
0.6450
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4_2600_spg79

Decomposition

Mg2H4Ir Mg44Ir7 Mg3Ir

Computed at

2023-07-27 09:20:00.594194

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: agm006138593).

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 agm006138593
data_agm006138593
_cell_length_a     5.22141
_cell_length_b     5.78130
_cell_length_c     5.22513
_cell_angle_alpha  123.69681
_cell_angle_beta   108.00260
_cell_angle_gamma  56.33753
_cell_volume       109.22298
_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
  Mg1 Mg 0.99998 0.28013 0.23697 1.00000
  Mg2 Mg 0.27570 0.65914 0.27107 1.00000
  Mg3 Mg 0.62276 0.79659 0.89257 1.00000
  Mg4 Mg 0.65466 0.14166 0.61622 1.00000
  H1 H 0.13935 0.40705 0.75286 1.00000
  Ir1 Ir 0.13873 0.69906 0.75397 1.00000
Get direct link