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Er2Sc4Se9

Alexandria ALEX

Alex-ID: agm005642086 · Space group: P-3c1 (#165)

Basic Information

Formula
Er2Sc4Se9
Alex-ID
agm005642086
Elements
3
Sites
30
Space group
P-3c1 (#165)
Crystal system
trigonal
Volume
775.19
ų
Cell a
6.8955
Å
Cell b
6.8960
Å
Cell c
18.8236
Å
α angle
90.00
°
β angle
90.01
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Er2Sc4Se9
Er
4.00 · 13.3%
Sc
8.00 · 26.7%
Se
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0535
eV/atom
Formation energy
-1.7133
eV/atom
Corrected total energy
-183.1336
eV
Raw total energy
-183.1336
eV

Electronic Structure

Indirect band gap
1.3483
eV
Direct band gap
1.3968
eV
DOS at Fermi level
-0.0005
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_141_spg2

Decomposition

Sc2Se3 Er2Se3

Computed at

2023-06-16 23:27:56.462338

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: agm005642086).

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 agm005642086
data_agm005642086
_cell_length_a     6.89549
_cell_length_b     6.89597
_cell_length_c     18.82361
_cell_angle_alpha  89.99917
_cell_angle_beta   90.00590
_cell_angle_gamma  60.00343
_cell_volume       775.19106
_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
  Er1 Er 0.99965 0.00011 0.34752 1.00000
  Er2 Er 0.99972 0.99988 0.15244 1.00000
  Er3 Er 0.00035 0.99989 0.65248 1.00000
  Er4 Er 0.00028 0.00012 0.84756 1.00000
  Sc1 Sc 0.33343 0.33336 0.99042 1.00000
  Sc2 Sc 0.33325 0.33335 0.49040 1.00000
  Sc3 Sc 0.66657 0.66664 0.00958 1.00000
  Sc4 Sc 0.33293 0.33333 0.17777 1.00000
  Sc5 Sc 0.66675 0.66665 0.50960 1.00000
  Sc6 Sc 0.66630 0.66668 0.32216 1.00000
  Sc7 Sc 0.33370 0.33332 0.67784 1.00000
  Sc8 Sc 0.66707 0.66667 0.82223 1.00000
  Se1 Se 0.00019 0.32055 0.74999 1.00000
  Se2 Se 0.32071 0.67944 0.75009 1.00000
  Se3 Se 0.67983 0.99998 0.75002 1.00000
  Se4 Se 0.99981 0.67945 0.25001 1.00000
  Se5 Se 0.67929 0.32056 0.24991 1.00000
  Se6 Se 0.32017 0.00002 0.24998 1.00000
  Se7 Se 0.65134 0.97980 0.41705 1.00000
  Se8 Se 0.97959 0.36868 0.41707 1.00000
  Se9 Se 0.36831 0.65181 0.41713 1.00000
  Se10 Se 0.63106 0.02011 0.08296 1.00000
  Se11 Se 0.34824 0.63137 0.08290 1.00000
  Se12 Se 0.02015 0.34802 0.08279 1.00000
  Se13 Se 0.34866 0.02020 0.58295 1.00000
  Se14 Se 0.02041 0.63132 0.58293 1.00000
  Se15 Se 0.63169 0.34819 0.58287 1.00000
  Se16 Se 0.36894 0.97989 0.91704 1.00000
  Se17 Se 0.65176 0.36863 0.91710 1.00000
  Se18 Se 0.97985 0.65198 0.91721 1.00000
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