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Tm4MgGe4

Alexandria ALEX

Alex-ID: agm003243760 · Space group: Pnma (#62)

Basic Information

Formula
Tm4MgGe4
Alex-ID
agm003243760
Elements
3
Sites
36
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
787.92
ų
Cell a
7.1048
Å
Cell b
7.6494
Å
Cell c
14.4978
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Tm4MgGe4
Tm
16.00 · 44.4%
Mg
4.00 · 11.1%
Ge
16.00 · 44.4%

Energy & Stability

Energy above hull
0.0023
eV/atom
Formation energy
-0.7887
eV/atom
Corrected total energy
-180.1921
eV
Raw total energy
-180.1920
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0224
eV
DOS at Fermi level
17.8692
Total magnetisation
-0.0001
μB

Additional Information

Prototype ID

AB4C4_32_spg62

Decomposition

Tm2MgGe2 TmGe

Computed at

2021-12-28 04:06:00.456498

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: agm003243760).

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 agm003243760
data_agm003243760
_cell_length_a     7.10476
_cell_length_b     7.64942
_cell_length_c     14.49781
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       787.91707
_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
  Tm1 Tm 0.00784 0.18197 0.09349 1.00000
  Tm2 Tm 0.99216 0.81803 0.90651 1.00000
  Tm3 Tm 0.49216 0.68197 0.90651 1.00000
  Tm4 Tm 0.99216 0.81803 0.59349 1.00000
  Tm5 Tm 0.50784 0.31803 0.09349 1.00000
  Tm6 Tm 0.00784 0.18197 0.40651 1.00000
  Tm7 Tm 0.50784 0.31803 0.40651 1.00000
  Tm8 Tm 0.49216 0.68197 0.59349 1.00000
  Tm9 Tm 0.33308 0.17661 0.62647 1.00000
  Tm10 Tm 0.66692 0.82339 0.37353 1.00000
  Tm11 Tm 0.16692 0.67661 0.37353 1.00000
  Tm12 Tm 0.66692 0.82339 0.12647 1.00000
  Tm13 Tm 0.83308 0.32339 0.62647 1.00000
  Tm14 Tm 0.33308 0.17661 0.87353 1.00000
  Tm15 Tm 0.83308 0.32339 0.87353 1.00000
  Tm16 Tm 0.16692 0.67661 0.12647 1.00000
  Mg1 Mg 0.16332 0.51796 0.75000 1.00000
  Mg2 Mg 0.83668 0.48204 0.25000 1.00000
  Mg3 Mg 0.33668 0.01796 0.25000 1.00000
  Mg4 Mg 0.66332 0.98204 0.75000 1.00000
  Ge1 Ge 0.17424 0.46507 0.53578 1.00000
  Ge2 Ge 0.82576 0.53493 0.46422 1.00000
  Ge3 Ge 0.32576 0.96507 0.46422 1.00000
  Ge4 Ge 0.82576 0.53493 0.03578 1.00000
  Ge5 Ge 0.67424 0.03493 0.53578 1.00000
  Ge6 Ge 0.17424 0.46507 0.96422 1.00000
  Ge7 Ge 0.67424 0.03493 0.96422 1.00000
  Ge8 Ge 0.32576 0.96507 0.03578 1.00000
  Ge9 Ge 0.02653 0.09033 0.75000 1.00000
  Ge10 Ge 0.97347 0.90967 0.25000 1.00000
  Ge11 Ge 0.47347 0.59033 0.25000 1.00000
  Ge12 Ge 0.52653 0.40967 0.75000 1.00000
  Ge13 Ge 0.29179 0.85984 0.75000 1.00000
  Ge14 Ge 0.70821 0.14016 0.25000 1.00000
  Ge15 Ge 0.20821 0.35984 0.25000 1.00000
  Ge16 Ge 0.79179 0.64016 0.75000 1.00000
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