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PmDy2ErAs4

Alexandria ALEX

Alex-ID: agm017454928 · Space group: I-4m2 (#119)

Alexandria Database API

Basic Information

Formula
PmDy2ErAs4
Alex-ID
agm017454928
Elements
4
Sites
8
Space group
I-4m2 (#119)
Crystal system
tetragonal
Volume
200.92
ų
Cell a
7.1730
Å
Cell b
7.1730
Å
Cell c
7.1730
Å
α angle
131.80
°
β angle
131.80
°
γ angle
70.54
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PmDy2ErAs4
Pm
1.00 · 12.5%
Dy
2.00 · 25.0%
Er
1.00 · 12.5%
As
4.00 · 50.0%

Energy & Stability

Energy above hull
0.0124
eV/atom
Formation energy
-1.5199
eV/atom
Corrected total energy
-49.2780
eV
Raw total energy
-49.2780
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
1.1674
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_39_spg82

Decomposition

Dy3ErAs4 DyEr2As3 PmAs

Computed at

2025-07-01 16:10:36

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: agm017454928).

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 agm017454928
data_agm017454928
_cell_length_a     7.17298
_cell_length_b     7.17298
_cell_length_c     7.17298
_cell_angle_alpha  131.80472
_cell_angle_beta   131.80472
_cell_angle_gamma  70.53762
_cell_volume       200.92466
_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 0.00000 0.00000 0.00000 1.00000
  Dy1 Dy 0.75000 0.25000 0.50000 1.00000
  Dy2 Dy 0.50000 0.50000 0.00000 1.00000
  Er1 Er 0.25000 0.75000 0.50000 1.00000
  As1 As 0.49903 0.99903 0.50000 1.00000
  As2 As 0.00097 0.50097 0.50000 1.00000
  As3 As 0.25285 0.25285 0.00000 1.00000
  As4 As 0.74715 0.74715 0.00000 1.00000
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