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HoNb2Fe9

Alexandria ALEX

Alex-ID: agm044281407 · Space group: P6_3/mmc (#194)

Alexandria Database API

Basic Information

Formula
HoNb2Fe9
Alex-ID
agm044281407
Elements
3
Sites
24
Space group
P6_3/mmc (#194)
Crystal system
hexagonal
Volume
326.53
ų
Cell a
4.8998
Å
Cell b
4.8998
Å
Cell c
15.7051
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
HoNb2Fe9
Ho
2.00 · 8.3%
Nb
4.00 · 16.7%
Fe
18.00 · 75.0%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.1167
eV/atom
Corrected total energy
-204.5664
eV
Raw total energy
-204.5663
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
20.6737
Total magnetisation
30.6081
μB

Additional Information

Prototype ID

AB2C9_13_spg194

Decomposition

HoNb2Fe9

Computed at

2024-09-13 13:51:31.240481

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: agm044281407).

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 agm044281407
data_agm044281407
_cell_length_a     4.89975
_cell_length_b     4.89975
_cell_length_c     15.70511
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       326.52724
_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
  Ho1 Ho 0.33333 0.66667 0.75000 1.00000
  Ho2 Ho 0.66667 0.33333 0.25000 1.00000
  Nb1 Nb 0.33333 0.66667 0.53472 1.00000
  Nb2 Nb 0.66667 0.33333 0.03472 1.00000
  Nb3 Nb 0.66667 0.33333 0.46528 1.00000
  Nb4 Nb 0.33333 0.66667 0.96528 1.00000
  Fe1 Fe 0.00000 0.00000 0.00000 1.00000
  Fe2 Fe 0.00000 0.00000 0.50000 1.00000
  Fe3 Fe 0.00000 0.00000 0.25000 1.00000
  Fe4 Fe 0.00000 0.00000 0.75000 1.00000
  Fe5 Fe 0.33333 0.66667 0.25000 1.00000
  Fe6 Fe 0.66667 0.33333 0.75000 1.00000
  Fe7 Fe 0.16821 0.33642 0.12085 1.00000
  Fe8 Fe 0.66358 0.83179 0.12085 1.00000
  Fe9 Fe 0.16821 0.83179 0.12085 1.00000
  Fe10 Fe 0.83179 0.66358 0.62085 1.00000
  Fe11 Fe 0.33642 0.16821 0.62085 1.00000
  Fe12 Fe 0.83179 0.16821 0.62085 1.00000
  Fe13 Fe 0.33642 0.16821 0.87915 1.00000
  Fe14 Fe 0.83179 0.66358 0.87915 1.00000
  Fe15 Fe 0.83179 0.16821 0.87915 1.00000
  Fe16 Fe 0.66358 0.83179 0.37915 1.00000
  Fe17 Fe 0.16821 0.33642 0.37915 1.00000
  Fe18 Fe 0.16821 0.83179 0.37915 1.00000
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