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Y2HoTmAs4

Alexandria ALEX

Alex-ID: agm026136109 · Space group: I4/mmm (#139)

Alexandria Database API

Basic Information

Formula
Y2HoTmAs4
Alex-ID
agm026136109
Elements
4
Sites
8
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
195.44
ų
Cell a
7.1083
Å
Cell b
7.1083
Å
Cell c
7.1083
Å
α angle
131.82
°
β angle
131.82
°
γ angle
70.51
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Y2HoTmAs4
Y
2.00 · 25.0%
Ho
1.00 · 12.5%
Tm
1.00 · 12.5%
As
4.00 · 50.0%

Energy & Stability

Energy above hull
0.0054
eV/atom
Formation energy
-1.5354
eV/atom
Corrected total energy
-52.8575
eV
Raw total energy
-52.8575
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0002
eV
DOS at Fermi level
1.1856
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_368_spg23

Decomposition

Y3HoAs4 HoTm3As4

Computed at

2025-03-09 10:32:56

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: agm026136109).

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 agm026136109
data_agm026136109
_cell_length_a     7.10833
_cell_length_b     7.10833
_cell_length_c     7.10833
_cell_angle_alpha  131.82310
_cell_angle_beta   131.82310
_cell_angle_gamma  70.50856
_cell_volume       195.43580
_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
  Y1 Y 0.25000 0.75000 0.50000 1.00000
  Y2 Y 0.75000 0.25000 0.50000 1.00000
  Ho1 Ho 0.50000 0.50000 0.00000 1.00000
  Tm1 Tm 0.00000 0.00000 0.00000 1.00000
  As1 As 0.00000 0.50000 0.50000 1.00000
  As2 As 0.50000 0.00000 0.50000 1.00000
  As3 As 0.75101 0.75101 0.00000 1.00000
  As4 As 0.24899 0.24899 0.00000 1.00000
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