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FeO2

Alexandria ALEX

Alex-ID: agm005228735 · Space group: Pnma (#62)

Basic Information

Formula
FeO2
Alex-ID
agm005228735
Elements
2
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
255.80
ų
Cell a
2.8765
Å
Cell b
8.5912
Å
Cell c
10.3509
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
FeO2
Fe
8.00 · 33.3%
O
16.00 · 66.7%

Energy & Stability

Energy above hull
0.3401
eV/atom
Formation energy
-1.1895
eV/atom
Corrected total energy
-175.5819
eV
Raw total energy
-142.4812
eV

Electronic Structure

Indirect band gap
0.1961
eV
Direct band gap
0.1961
eV
DOS at Fermi level
0.7245
Total magnetisation
16.0034
μB

Additional Information

Prototype ID

AB2_28_spg26

Decomposition

FeO4 Fe2O3

Computed at

2023-05-09 22:44:43.233475

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: agm005228735).

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 agm005228735
data_agm005228735
_cell_length_a     2.87652
_cell_length_b     8.59120
_cell_length_c     10.35092
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       255.79942
_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
  Fe1 Fe 0.75000 0.41334 0.60135 1.00000
  Fe2 Fe 0.25000 0.08666 0.10135 1.00000
  Fe3 Fe 0.75000 0.91334 0.89865 1.00000
  Fe4 Fe 0.25000 0.58666 0.39865 1.00000
  Fe5 Fe 0.25000 0.55447 0.88357 1.00000
  Fe6 Fe 0.75000 0.44553 0.11643 1.00000
  Fe7 Fe 0.25000 0.05447 0.61643 1.00000
  Fe8 Fe 0.75000 0.94553 0.38357 1.00000
  O1 O 0.75000 0.91613 0.56888 1.00000
  O2 O 0.25000 0.08387 0.43112 1.00000
  O3 O 0.75000 0.41613 0.93112 1.00000
  O4 O 0.25000 0.58387 0.06888 1.00000
  O5 O 0.75000 0.03822 0.21455 1.00000
  O6 O 0.25000 0.96178 0.78545 1.00000
  O7 O 0.75000 0.53822 0.28545 1.00000
  O8 O 0.25000 0.46178 0.71455 1.00000
  O9 O 0.75000 0.61721 0.51990 1.00000
  O10 O 0.25000 0.38279 0.48010 1.00000
  O11 O 0.75000 0.11721 0.98010 1.00000
  O12 O 0.25000 0.88279 0.01990 1.00000
  O13 O 0.25000 0.80470 0.34666 1.00000
  O14 O 0.75000 0.19530 0.65334 1.00000
  O15 O 0.75000 0.69530 0.84666 1.00000
  O16 O 0.25000 0.30470 0.15334 1.00000
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