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La4Pm2TmMg

Alexandria ALEX

Alex-ID: agm004863984 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
La4Pm2TmMg
Alex-ID
agm004863984
Elements
4
Sites
8
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
270.05
ų
Cell a
5.1519
Å
Cell b
5.1517
Å
Cell c
11.4051
Å
α angle
63.14
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La4Pm2TmMg
La
4.00 · 50.0%
Pm
2.00 · 25.0%
Tm
1.00 · 12.5%
Mg
1.00 · 12.5%

Energy & Stability

Energy above hull
0.0351
eV/atom
Formation energy
0.0004
eV/atom
Corrected total energy
-35.2742
eV
Raw total energy
-35.2742
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
10.7068
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_443_spg123

Decomposition

LaTm2 La7Tm LaPm La5PmMg6

Computed at

2022-07-17 03:26:48.455622

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: agm004863984).

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 agm004863984
data_agm004863984
_cell_length_a     5.15187
_cell_length_b     5.15166
_cell_length_c     11.40505
_cell_angle_alpha  63.14445
_cell_angle_beta   89.99925
_cell_angle_gamma  89.99964
_cell_volume       270.05136
_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
  La1 La 0.00000 0.74769 0.75285 1.00000
  La2 La 1.00000 0.25231 0.24715 1.00000
  La3 La 0.50001 0.75187 0.24762 1.00000
  La4 La 0.49999 0.24813 0.75238 1.00000
  Pm1 Pm 0.00000 0.00000 1.00000 1.00000
  Pm2 Pm 0.50000 0.00000 0.50000 1.00000
  Tm1 Tm 0.00000 0.49999 0.50000 1.00000
  Mg1 Mg 0.50000 0.50000 1.00000 1.00000
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