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Na8MgFe7O16

Alexandria ALEX

Alex-ID: agm009019673 · Space group: P-1 (#2)

Basic Information

Formula
Na8MgFe7O16
Alex-ID
agm009019673
Elements
4
Sites
32
Space group
P-1 (#2)
Crystal system
triclinic
Volume
331.33
ų
Cell a
7.0681
Å
Cell b
7.0067
Å
Cell c
7.9165
Å
α angle
66.34
°
β angle
75.33
°
γ angle
68.41
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na8MgFe7O16
Na
8.00 · 25.0%
Mg
1.00 · 3.1%
Fe
7.00 · 21.9%
O
16.00 · 50.0%

Energy & Stability

Energy above hull
0.2757
eV/atom
Formation energy
-1.6864
eV/atom
Corrected total energy
-204.6818
eV
Raw total energy
-174.3141
eV

Electronic Structure

Indirect band gap
0.5701
eV
Direct band gap
0.6424
eV
DOS at Fermi level
-0.3087
Total magnetisation
-7.9833
μB

Additional Information

Prototype ID

AB7C8D16_1_spg2

Decomposition

Na4FeO4 Na3O4 NaFeO2 MgO

Computed at

2025-01-02 23:53:46

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: agm009019673).

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 agm009019673
data_agm009019673
_cell_length_a     7.06809
_cell_length_b     7.00668
_cell_length_c     7.91651
_cell_angle_alpha  66.34256
_cell_angle_beta   75.32784
_cell_angle_gamma  68.40665
_cell_volume       331.32803
_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
  Na1 Na 0.93581 0.56668 0.80998 1.00000
  Na2 Na 0.56409 0.94037 0.68545 1.00000
  Na3 Na 0.18570 0.30923 0.56228 1.00000
  Na4 Na 0.81430 0.69077 0.43772 1.00000
  Na5 Na 0.43591 0.05963 0.31455 1.00000
  Na6 Na 0.06419 0.43332 0.19002 1.00000
  Na7 Na 0.68782 0.81512 0.06630 1.00000
  Na8 Na 0.31218 0.18488 0.93370 1.00000
  Mg1 Mg 0.00000 0.00000 0.50000 1.00000
  Fe1 Fe 0.74471 0.25141 0.74730 1.00000
  Fe2 Fe 0.25529 0.74859 0.25270 1.00000
  Fe3 Fe 0.62502 0.37732 0.37457 1.00000
  Fe4 Fe 0.37498 0.62268 0.62543 1.00000
  Fe5 Fe 0.87946 0.12503 0.12620 1.00000
  Fe6 Fe 0.50000 0.50000 0.00000 1.00000
  Fe7 Fe 0.12054 0.87497 0.87381 1.00000
  O1 O 0.85168 0.93988 0.77182 1.00000
  O2 O 0.49417 0.31382 0.63790 1.00000
  O3 O 0.87018 0.32731 0.48474 1.00000
  O4 O 0.62395 0.56408 0.73768 1.00000
  O5 O 0.26316 0.93098 0.62031 1.00000
  O6 O 0.73684 0.06902 0.37969 1.00000
  O7 O 0.37605 0.43592 0.26232 1.00000
  O8 O 0.75098 0.44436 0.10672 1.00000
  O9 O 0.12982 0.67269 0.51526 1.00000
  O10 O 0.50583 0.68618 0.36210 1.00000
  O11 O 0.14832 0.06012 0.22818 1.00000
  O12 O 0.60365 0.20107 0.00919 1.00000
  O13 O 0.24902 0.55564 0.89328 1.00000
  O14 O 0.99960 0.80878 0.14019 1.00000
  O15 O 0.39635 0.79893 0.99081 1.00000
  O16 O 0.00040 0.19122 0.85981 1.00000
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