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PmMgB14

Alexandria ALEX

Alex-ID: agm005754703 · Space group: Imma (#74)

Basic Information

Formula
PmMgB14
Alex-ID
agm005754703
Elements
3
Sites
32
Space group
Imma (#74)
Crystal system
orthorhombic
Volume
265.65
ų
Cell a
5.9354
Å
Cell b
7.4179
Å
Cell c
7.4179
Å
α angle
68.31
°
β angle
66.42
°
γ angle
66.42
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PmMgB14
Pm
2.00 · 6.3%
Mg
2.00 · 6.3%
B
28.00 · 87.5%

Energy & Stability

Energy above hull
0.0577
eV/atom
Formation energy
-0.2107
eV/atom
Corrected total energy
-206.4006
eV
Raw total energy
-206.4006
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
3.7091
Total magnetisation
-0.0001
μB

Additional Information

Prototype ID

ABC14_1_spg74

Decomposition

MgB7 PmB6 B

Computed at

2023-07-18 13:55:47.470999

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: agm005754703).

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 agm005754703
data_agm005754703
_cell_length_a     5.93537
_cell_length_b     7.41792
_cell_length_c     7.41792
_cell_angle_alpha  68.30785
_cell_angle_beta   66.41746
_cell_angle_gamma  66.41747
_cell_volume       265.64822
_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 0.25000 0.38918 0.11082 1.00000
  Pm2 Pm 0.75000 0.61082 0.88918 1.00000
  Mg1 Mg 0.50000 0.00000 0.50000 1.00000
  Mg2 Mg 0.00000 0.00000 0.50000 1.00000
  B1 B 0.66632 0.36352 0.30384 1.00000
  B2 B 0.33368 0.63648 0.69616 1.00000
  B3 B 0.16632 0.80384 0.86352 1.00000
  B4 B 0.83368 0.19616 0.13648 1.00000
  B5 B 0.13229 0.23971 0.49572 1.00000
  B6 B 0.86771 0.76029 0.50428 1.00000
  B7 B 0.63229 0.99572 0.73971 1.00000
  B8 B 0.36771 0.00428 0.26029 1.00000
  B9 B 0.08316 0.08589 0.74779 1.00000
  B10 B 0.91684 0.91411 0.25221 1.00000
  B11 B 0.58316 0.24779 0.58589 1.00000
  B12 B 0.41684 0.75221 0.41411 1.00000
  B13 B 0.71968 0.60039 0.27990 1.00000
  B14 B 0.59997 0.39961 0.72010 1.00000
  B15 B 0.21968 0.77990 0.10039 1.00000
  B16 B 0.09997 0.22010 0.89961 1.00000
  B17 B 0.28032 0.39961 0.72010 1.00000
  B18 B 0.40003 0.60039 0.27990 1.00000
  B19 B 0.78032 0.22010 0.89961 1.00000
  B20 B 0.90003 0.77990 0.10039 1.00000
  B21 B 0.32429 0.97072 0.87704 1.00000
  B22 B 0.17204 0.02928 0.12296 1.00000
  B23 B 0.82429 0.37704 0.47072 1.00000
  B24 B 0.67204 0.62296 0.52928 1.00000
  B25 B 0.67571 0.02928 0.12296 1.00000
  B26 B 0.82796 0.97072 0.87704 1.00000
  B27 B 0.17571 0.62296 0.52928 1.00000
  B28 B 0.32796 0.37704 0.47072 1.00000
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