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Ho4MgGe4

Alexandria ALEX

Alex-ID: agm003243763 · Space group: Pnma (#62)

Basic Information

Formula
Ho4MgGe4
Alex-ID
agm003243763
Elements
3
Sites
36
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
808.44
ų
Cell a
7.1621
Å
Cell b
7.7191
Å
Cell c
14.6233
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho4MgGe4
Ho
16.00 · 44.4%
Mg
4.00 · 11.1%
Ge
16.00 · 44.4%

Energy & Stability

Energy above hull
0.0055
eV/atom
Formation energy
-0.8077
eV/atom
Corrected total energy
-182.5908
eV
Raw total energy
-182.5908
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0475
eV
DOS at Fermi level
18.1353
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB4C4_32_spg62

Decomposition

Ho2MgGe2 HoGe

Computed at

2021-12-28 04:21:40.843437

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: agm003243763).

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 agm003243763
data_agm003243763
_cell_length_a     7.16208
_cell_length_b     7.71909
_cell_length_c     14.62327
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       808.44321
_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
  Ho1 Ho 0.01006 0.18255 0.09427 1.00000
  Ho2 Ho 0.98994 0.81745 0.90573 1.00000
  Ho3 Ho 0.48994 0.68255 0.90573 1.00000
  Ho4 Ho 0.98994 0.81745 0.59427 1.00000
  Ho5 Ho 0.51006 0.31745 0.09427 1.00000
  Ho6 Ho 0.01006 0.18255 0.40573 1.00000
  Ho7 Ho 0.51006 0.31745 0.40573 1.00000
  Ho8 Ho 0.48994 0.68255 0.59427 1.00000
  Ho9 Ho 0.33127 0.17719 0.62672 1.00000
  Ho10 Ho 0.66873 0.82281 0.37328 1.00000
  Ho11 Ho 0.16873 0.67719 0.37328 1.00000
  Ho12 Ho 0.66873 0.82281 0.12672 1.00000
  Ho13 Ho 0.83127 0.32281 0.62672 1.00000
  Ho14 Ho 0.33127 0.17719 0.87328 1.00000
  Ho15 Ho 0.83127 0.32281 0.87328 1.00000
  Ho16 Ho 0.16873 0.67719 0.12672 1.00000
  Mg1 Mg 0.16189 0.51950 0.75000 1.00000
  Mg2 Mg 0.83811 0.48050 0.25000 1.00000
  Mg3 Mg 0.33811 0.01950 0.25000 1.00000
  Mg4 Mg 0.66189 0.98050 0.75000 1.00000
  Ge1 Ge 0.02433 0.08846 0.75000 1.00000
  Ge2 Ge 0.97567 0.91154 0.25000 1.00000
  Ge3 Ge 0.47567 0.58846 0.25000 1.00000
  Ge4 Ge 0.52433 0.41154 0.75000 1.00000
  Ge5 Ge 0.28862 0.86080 0.75000 1.00000
  Ge6 Ge 0.71138 0.13920 0.25000 1.00000
  Ge7 Ge 0.21138 0.36080 0.25000 1.00000
  Ge8 Ge 0.78862 0.63920 0.75000 1.00000
  Ge9 Ge 0.17165 0.46556 0.53574 1.00000
  Ge10 Ge 0.82835 0.53444 0.46426 1.00000
  Ge11 Ge 0.32835 0.96556 0.46426 1.00000
  Ge12 Ge 0.82835 0.53444 0.03574 1.00000
  Ge13 Ge 0.67165 0.03444 0.53574 1.00000
  Ge14 Ge 0.17165 0.46556 0.96426 1.00000
  Ge15 Ge 0.67165 0.03444 0.96426 1.00000
  Ge16 Ge 0.32835 0.96556 0.03574 1.00000
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