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Ba2YI7

Alexandria ALEX

Alex-ID: agm003246778 · Space group: P2_1 (#4)

Basic Information

Formula
Ba2YI7
Alex-ID
agm003246778
Elements
3
Sites
40
Space group
P2_1 (#4)
Crystal system
monoclinic
Volume
1,931.37
ų
Cell a
14.8068
Å
Cell b
8.5085
Å
Cell c
15.4984
Å
α angle
81.55
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ba2YI7
Ba
8.00 · 20.0%
Y
4.00 · 10.0%
I
28.00 · 70.0%

Energy & Stability

Energy above hull
0.0252
eV/atom
Formation energy
-1.6146
eV/atom
Corrected total energy
-149.2215
eV
Raw total energy
-149.2215
eV

Electronic Structure

Indirect band gap
2.9994
eV
Direct band gap
3.0336
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C7_183_spg4

Decomposition

YI3 BaI2

Computed at

2022-01-03 06:49:16.541025

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: agm003246778).

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 agm003246778
data_agm003246778
_cell_length_a     14.80685
_cell_length_b     8.50846
_cell_length_c     15.49843
_cell_angle_alpha  81.55367
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       1931.36892
_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
  Ba1 Ba 0.54537 0.68480 0.81197 1.00000
  Ba2 Ba 0.12837 0.75732 0.65596 1.00000
  Ba3 Ba 0.79830 0.78835 0.16213 1.00000
  Ba4 Ba 0.36995 0.62804 0.31002 1.00000
  Ba5 Ba 0.86995 0.37196 0.68998 1.00000
  Ba6 Ba 0.29830 0.21165 0.83787 1.00000
  Ba7 Ba 0.62837 0.24268 0.34404 1.00000
  Ba8 Ba 0.04537 0.31520 0.18803 1.00000
  Y1 Y 0.83685 0.87501 0.56172 1.00000
  Y2 Y 0.08326 0.88090 0.05210 1.00000
  Y3 Y 0.58326 0.11910 0.94790 1.00000
  Y4 Y 0.33685 0.12499 0.43828 1.00000
  I1 I 0.71123 0.84540 0.93815 1.00000
  I2 I 0.42920 0.88575 0.98070 1.00000
  I3 I 0.49285 0.89647 0.44075 1.00000
  I4 I 0.15363 0.87449 0.86840 1.00000
  I5 I 0.21688 0.83864 0.42679 1.00000
  I6 I 0.77543 0.91003 0.37200 1.00000
  I7 I 0.90100 0.76510 0.74825 1.00000
  I8 I 0.02197 0.88765 0.24115 1.00000
  I9 I 0.34688 0.58578 0.71554 1.00000
  I10 I 0.58496 0.61787 0.22435 1.00000
  I11 I 0.68189 0.64372 0.61770 1.00000
  I12 I 0.71741 0.37533 0.86973 1.00000
  I13 I 0.96356 0.61793 0.51281 1.00000
  I14 I 0.45408 0.38850 0.97034 1.00000
  I15 I 0.95408 0.61150 0.02966 1.00000
  I16 I 0.46356 0.38207 0.48719 1.00000
  I17 I 0.21741 0.62467 0.13027 1.00000
  I18 I 0.18189 0.35628 0.38230 1.00000
  I19 I 0.08496 0.38213 0.77565 1.00000
  I20 I 0.84688 0.41422 0.28446 1.00000
  I21 I 0.52197 0.11235 0.75885 1.00000
  I22 I 0.40100 0.23490 0.25175 1.00000
  I23 I 0.27543 0.08997 0.62800 1.00000
  I24 I 0.71688 0.16136 0.57321 1.00000
  I25 I 0.65363 0.12551 0.13160 1.00000
  I26 I 0.99285 0.10353 0.55925 1.00000
  I27 I 0.92920 0.11425 0.01930 1.00000
  I28 I 0.21123 0.15460 0.06185 1.00000
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