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Pm3MgAg7

Alexandria ALEX

Alex-ID: agm005998619 · Space group: Cmcm (#63)

Basic Information

Formula
Pm3MgAg7
Alex-ID
agm005998619
Elements
3
Sites
22
Space group
Cmcm (#63)
Crystal system
orthorhombic
Volume
524.77
ų
Cell a
4.6166
Å
Cell b
10.9988
Å
Cell c
10.5701
Å
α angle
90.00
°
β angle
90.00
°
γ angle
102.11
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm3MgAg7
Pm
6.00 · 27.3%
Mg
2.00 · 9.1%
Ag
14.00 · 63.6%

Energy & Stability

Energy above hull
0.1194
eV/atom
Formation energy
-0.1493
eV/atom
Corrected total energy
-74.8952
eV
Raw total energy
-74.8951
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0453
eV
DOS at Fermi level
12.1874
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C7_177_spg63

Decomposition

Pm(MgAg2)2 PmAg2

Computed at

2023-08-12 04:06:07.654225

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: agm005998619).

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 agm005998619
data_agm005998619
_cell_length_a     4.61656
_cell_length_b     10.99885
_cell_length_c     10.57013
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  102.11448
_cell_volume       524.76570
_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 0.12620 0.25240 0.43478 1.00000
  Pm2 Pm 0.87380 0.74760 0.56522 1.00000
  Pm3 Pm 0.20023 0.40046 0.75000 1.00000
  Pm4 Pm 0.79977 0.59954 0.25000 1.00000
  Pm5 Pm 0.12620 0.25240 0.06522 1.00000
  Pm6 Pm 0.87380 0.74760 0.93478 1.00000
  Mg1 Mg 0.96741 0.93481 0.25000 1.00000
  Mg2 Mg 0.03259 0.06519 0.75000 1.00000
  Ag1 Ag 0.34421 0.68842 0.75000 1.00000
  Ag2 Ag 0.65579 0.31158 0.25000 1.00000
  Ag3 Ag 0.53072 0.06144 0.38137 1.00000
  Ag4 Ag 0.46928 0.93856 0.61863 1.00000
  Ag5 Ag 0.46928 0.93856 0.88137 1.00000
  Ag6 Ag 0.53072 0.06144 0.11863 1.00000
  Ag7 Ag 0.40107 0.80214 0.37780 1.00000
  Ag8 Ag 0.59893 0.19786 0.62220 1.00000
  Ag9 Ag 0.28245 0.56489 0.48029 1.00000
  Ag10 Ag 0.71755 0.43511 0.51971 1.00000
  Ag11 Ag 0.71755 0.43511 0.98029 1.00000
  Ag12 Ag 0.28245 0.56489 0.01971 1.00000
  Ag13 Ag 0.40107 0.80214 0.12220 1.00000
  Ag14 Ag 0.59893 0.19786 0.87780 1.00000
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