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Ca2HfFeGe2O9F

Alexandria ALEX

Alex-ID: agm010346213 · Space group: P1 (#1)

Alexandria Database API

Basic Information

Formula
Ca2HfFeGe2O9F
Alex-ID
agm010346213
Elements
6
Sites
16
Space group
P1 (#1)
Crystal system
triclinic
Volume
210.97
ų
Cell a
5.5310
Å
Cell b
5.7417
Å
Cell c
7.5796
Å
α angle
104.80
°
β angle
102.67
°
γ angle
107.02
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2HfFeGe2O9F
Ca
2.00 · 12.5%
Hf
1.00 · 6.3%
Fe
1.00 · 6.3%
Ge
2.00 · 12.5%
O
9.00 · 56.3%
F
1.00 · 6.3%

Energy & Stability

Energy above hull
0.0252
eV/atom
Formation energy
-2.9361
eV/atom
Corrected total energy
-124.6771
eV
Raw total energy
-115.6235
eV

Electronic Structure

Indirect band gap
2.8628
eV
Direct band gap
2.9590
eV
DOS at Fermi level
0.0000
Total magnetisation
4.9500
μB

Additional Information

Prototype ID

ABCD2E2F9_6_spg1

Decomposition

Ca3Fe2(GeO4)3 HfGeO4 CaF2 HfO2

Computed at

2024-08-24 23:57:02.846298

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: agm010346213).

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 agm010346213
data_agm010346213
_cell_length_a     5.53096
_cell_length_b     5.74171
_cell_length_c     7.57964
_cell_angle_alpha  104.79720
_cell_angle_beta   102.66813
_cell_angle_gamma  107.02335
_cell_volume       210.96961
_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
  Ca1 Ca 0.15343 0.83398 0.81102 1.00000
  Ca2 Ca 0.84317 0.16960 0.19093 1.00000
  Hf1 Hf 0.50828 0.49579 0.48338 1.00000
  Fe1 Fe 0.50454 0.49755 0.01392 1.00000
  Ge1 Ge 0.18280 0.81301 0.24234 1.00000
  Ge2 Ge 0.81314 0.18801 0.75832 1.00000
  O1 O 0.56691 0.17175 0.87629 1.00000
  O2 O 0.19148 0.60231 0.37521 1.00000
  O3 O 0.42325 0.82477 0.11707 1.00000
  O4 O 0.81517 0.40261 0.62857 1.00000
  O5 O 0.22556 0.12390 0.39322 1.00000
  O6 O 0.11200 0.26210 0.94679 1.00000
  O7 O 0.77164 0.87586 0.61258 1.00000
  O8 O 0.88454 0.74015 0.05234 1.00000
  O9 O 0.60672 0.43554 0.24925 1.00000
  F1 F 0.39738 0.56307 0.74877 1.00000
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