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MgAs2PbBr

Alexandria ALEX

Alex-ID: agm001673705 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
MgAs2PbBr
Alex-ID
agm001673705
Elements
4
Sites
5
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
169.97
ų
Cell a
5.4684
Å
Cell b
5.4684
Å
Cell c
5.6840
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MgAs2PbBr
Pb
1.00 · 20.0%
As
2.00 · 40.0%
Mg
1.00 · 20.0%
Br
1.00 · 20.0%

Energy & Stability

Energy above hull
1.1394
eV/atom
Formation energy
0.5626
eV/atom
Corrected total energy
-13.4621
eV
Raw total energy
-13.4621
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.2206
Total magnetisation
0.8924
μB

Additional Information

Prototype ID

ABCD2_2_spg123

Decomposition

MgAs4 As2Pb3 MgBr2 Mg3As2

Computed at

2020-02-25 10:21:55

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: agm001673705).

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 agm001673705
data_agm001673705
_cell_length_a     5.46841
_cell_length_b     5.46841
_cell_length_c     5.68404
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       169.97257
_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
  Pb1 Pb 0.00000 0.00000 0.00000 1.00000
  As1 As 0.00000 0.50000 0.00000 1.00000
  As2 As 0.50000 0.00000 0.00000 1.00000
  Mg1 Mg 0.50000 0.50000 0.50000 1.00000
  Br1 Br 0.00000 0.00000 0.50000 1.00000
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