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Pm3Mg7Hg4

Alexandria ALEX

Alex-ID: agm005705254 · Space group: C2/m (#12)

Basic Information

Formula
Pm3Mg7Hg4
Alex-ID
agm005705254
Elements
3
Sites
14
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
344.87
ų
Cell a
4.6333
Å
Cell b
8.9341
Å
Cell c
9.2488
Å
α angle
71.61
°
β angle
75.49
°
γ angle
74.97
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm3Mg7Hg4
Pm
3.00 · 21.4%
Mg
7.00 · 50.0%
Hg
4.00 · 28.6%

Energy & Stability

Energy above hull
0.0212
eV/atom
Formation energy
-0.2815
eV/atom
Corrected total energy
-30.7982
eV
Raw total energy
-30.7982
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
11.3547
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B4C7_8_spg12

Decomposition

PmMg3Hg2 PmMgHg PmMg3

Computed at

2023-06-29 17:21:10.464745

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: agm005705254).

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 agm005705254
data_agm005705254
_cell_length_a     4.63328
_cell_length_b     8.93406
_cell_length_c     9.24876
_cell_angle_alpha  71.61121
_cell_angle_beta   75.49401
_cell_angle_gamma  74.97121
_cell_volume       344.87416
_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 0.30474 0.18711 0.20341 1.00000
  Pm2 Pm 0.69526 0.81289 0.79659 1.00000
  Pm3 Pm 0.00000 0.50000 0.50000 1.00000
  Mg1 Mg 0.32323 0.83711 0.51642 1.00000
  Mg2 Mg 0.49099 0.21372 0.80430 1.00000
  Mg3 Mg 0.83920 0.39368 0.92793 1.00000
  Mg4 Mg 0.67677 0.16289 0.48358 1.00000
  Mg5 Mg 0.16080 0.60632 0.07207 1.00000
  Mg6 Mg 0.00000 0.00000 0.00000 1.00000
  Mg7 Mg 0.50901 0.78628 0.19570 1.00000
  Hg1 Hg 0.65587 0.44677 0.24149 1.00000
  Hg2 Hg 0.34413 0.55323 0.75851 1.00000
  Hg3 Hg 0.88113 0.90392 0.33383 1.00000
  Hg4 Hg 0.11887 0.09608 0.66617 1.00000
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