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Ba2CaHf3O9

Alexandria ALEX

Alex-ID: agm044363797 · Space group: Fmm2 (#42)

Basic Information

Formula
Ba2CaHf3O9
Alex-ID
agm044363797
Elements
4
Sites
30
Space group
Fmm2 (#42)
Crystal system
orthorhombic
Volume
429.28
ų
Cell a
13.0903
Å
Cell b
13.0761
Å
Cell c
5.8830
Å
α angle
77.14
°
β angle
76.87
°
γ angle
25.99
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ba2CaHf3O9
Ba
4.00 · 13.3%
Ca
2.00 · 6.7%
Hf
6.00 · 20.0%
O
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0393
eV/atom
Formation energy
-3.7617
eV/atom
Corrected total energy
-273.5132
eV
Raw total energy
-260.8720
eV

Electronic Structure

Indirect band gap
3.8093
eV
Direct band gap
3.8093
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3D9_177_spg42

Decomposition

CaHfO3 BaHfO3

Computed at

2024-12-01 06:16:54.557224

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: agm044363797).

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 agm044363797
data_agm044363797
_cell_length_a     13.09034
_cell_length_b     13.07608
_cell_length_c     5.88297
_cell_angle_alpha  77.14252
_cell_angle_beta   76.87191
_cell_angle_gamma  25.98557
_cell_volume       429.27844
_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 0.25809 0.74191 0.25809 1.00000
  Ba2 Ba 0.41657 0.92047 0.07953 1.00000
  Ba3 Ba 0.07953 0.58343 0.41657 1.00000
  Ba4 Ba 0.75312 0.24688 0.75312 1.00000
  Ca1 Ca 0.90410 0.42492 0.57508 1.00000
  Ca2 Ca 0.57508 0.09590 0.90410 1.00000
  Hf1 Hf 0.66607 0.16363 0.33735 1.00000
  Hf2 Hf 0.33735 0.83295 0.66607 1.00000
  Hf3 Hf 0.99581 0.50419 0.99581 1.00000
  Hf4 Hf 0.83637 0.33393 0.16705 1.00000
  Hf5 Hf 0.49581 0.00419 0.49581 1.00000
  Hf6 Hf 0.16705 0.66265 0.83637 1.00000
  O1 O 0.78204 0.21796 0.22682 1.00000
  O2 O 0.48421 0.85109 0.55313 1.00000
  O3 O 0.14891 0.51579 0.88844 1.00000
  O4 O 0.55313 0.11156 0.48421 1.00000
  O5 O 0.22682 0.77318 0.78204 1.00000
  O6 O 0.88844 0.44687 0.14891 1.00000
  O7 O 0.87958 0.92340 0.07660 1.00000
  O8 O 0.58403 0.56478 0.43522 1.00000
  O9 O 0.21043 0.25747 0.74253 1.00000
  O10 O 0.43522 0.41597 0.58403 1.00000
  O11 O 0.07660 0.12042 0.87958 1.00000
  O12 O 0.74253 0.78957 0.21043 1.00000
  O13 O 0.57711 0.59339 0.92701 1.00000
  O14 O 0.24689 0.25311 0.24689 1.00000
  O15 O 0.92701 0.90250 0.57711 1.00000
  O16 O 0.74689 0.75311 0.74689 1.00000
  O17 O 0.40661 0.42289 0.09750 1.00000
  O18 O 0.09750 0.07299 0.40661 1.00000
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