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HoNpCoO6

Alexandria ALEX

Alex-ID: agm005083172 · Space group: P-31c (#163)

Basic Information

Formula
HoNpCoO6
Alex-ID
agm005083172
Elements
4
Sites
18
Space group
P-31c (#163)
Crystal system
trigonal
Volume
241.01
ų
Cell a
5.6501
Å
Cell b
5.6501
Å
Cell c
8.7174
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
HoNpCoO6
Ho
2.00 · 11.1%
Np
2.00 · 11.1%
Co
2.00 · 11.1%
O
12.00 · 66.7%

Energy & Stability

Energy above hull
0.1710
eV/atom
Formation energy
-2.8209
eV/atom
Corrected total energy
-159.5609
eV
Raw total energy
-147.3854
eV

Electronic Structure

Indirect band gap
0.9041
eV
Direct band gap
0.9245
eV
DOS at Fermi level
-0.1321
Total magnetisation
5.9046
μB

Additional Information

Prototype ID

ABCD6_10_spg163

Decomposition

Ho2NpO6 HoNpO5 Co3O4 NpO3

Computed at

2022-08-09 08:12:44.089912

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: agm005083172).

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 agm005083172
data_agm005083172
_cell_length_a     5.65013
_cell_length_b     5.65013
_cell_length_c     8.71744
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       241.01055
_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 0.25000 1.00000
  Ho2 Ho 0.66667 0.33333 0.75000 1.00000
  Np1 Np 0.66667 0.33333 0.25000 1.00000
  Np2 Np 0.33333 0.66667 0.75000 1.00000
  Co1 Co 0.00000 0.00000 0.00000 1.00000
  Co2 Co 0.00000 0.00000 0.50000 1.00000
  O1 O 0.67536 0.64503 0.12893 1.00000
  O2 O 0.96966 0.32464 0.12893 1.00000
  O3 O 0.32464 0.96966 0.62893 1.00000
  O4 O 0.03034 0.67536 0.87107 1.00000
  O5 O 0.35497 0.32464 0.37107 1.00000
  O6 O 0.96966 0.64503 0.37107 1.00000
  O7 O 0.64503 0.96966 0.87107 1.00000
  O8 O 0.67536 0.03034 0.37107 1.00000
  O9 O 0.03034 0.35497 0.62893 1.00000
  O10 O 0.35497 0.03034 0.12893 1.00000
  O11 O 0.64503 0.67536 0.62893 1.00000
  O12 O 0.32464 0.35497 0.87107 1.00000
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