Navigation

HEAS Data Platform · Materials Science Database

KSi2HO5

Alexandria ALEX

Alex-ID: agm005222124 · Space group: Pnma (#62)

Basic Information

Formula
KSi2HO5
Alex-ID
agm005222124
Elements
4
Sites
36
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
506.11
ų
Cell a
4.8312
Å
Cell b
8.2964
Å
Cell c
12.6271
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KSi2HO5
K
4.00 · 11.1%
Si
8.00 · 22.2%
H
4.00 · 11.1%
O
20.00 · 55.6%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-2.8086
eV/atom
Corrected total energy
-261.0244
eV
Raw total energy
-246.9786
eV

Electronic Structure

Indirect band gap
5.0131
eV
Direct band gap
5.0131
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D5_876_spg62

Decomposition

KSi2HO5

Computed at

2024-10-05 16:33:50

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: agm005222124).

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 agm005222124
data_agm005222124
_cell_length_a     4.83116
_cell_length_b     8.29639
_cell_length_c     12.62708
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       506.10846
_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
  K1 K 0.96906 0.25000 0.53952 1.00000
  K2 K 0.53094 0.25000 0.03952 1.00000
  K3 K 0.03094 0.75000 0.46048 1.00000
  K4 K 0.46906 0.75000 0.96048 1.00000
  Si1 Si 0.47004 0.56248 0.68715 1.00000
  Si2 Si 0.02996 0.93752 0.18715 1.00000
  Si3 Si 0.52996 0.06248 0.31285 1.00000
  Si4 Si 0.97004 0.43752 0.81285 1.00000
  Si5 Si 0.52996 0.43752 0.31285 1.00000
  Si6 Si 0.97004 0.06248 0.81285 1.00000
  Si7 Si 0.47004 0.93752 0.68715 1.00000
  Si8 Si 0.02996 0.56248 0.18715 1.00000
  H1 H 0.50000 0.00000 0.50000 1.00000
  H2 H 0.00000 0.50000 0.00000 1.00000
  H3 H 0.50000 0.50000 0.50000 1.00000
  H4 H 0.00000 0.00000 0.00000 1.00000
  O1 O 0.24233 0.54881 0.78385 1.00000
  O2 O 0.25767 0.95119 0.28385 1.00000
  O3 O 0.75767 0.04881 0.21615 1.00000
  O4 O 0.74233 0.45119 0.71615 1.00000
  O5 O 0.75767 0.45119 0.21615 1.00000
  O6 O 0.74233 0.04881 0.71615 1.00000
  O7 O 0.24233 0.95119 0.78385 1.00000
  O8 O 0.25767 0.54881 0.28385 1.00000
  O9 O 0.34243 0.50986 0.57456 1.00000
  O10 O 0.15757 0.99014 0.07456 1.00000
  O11 O 0.65757 0.00986 0.42544 1.00000
  O12 O 0.84243 0.49014 0.92544 1.00000
  O13 O 0.65757 0.49014 0.42544 1.00000
  O14 O 0.84243 0.00986 0.92544 1.00000
  O15 O 0.34243 0.99014 0.57456 1.00000
  O16 O 0.15757 0.50986 0.07456 1.00000
  O17 O 0.08235 0.25000 0.81154 1.00000
  O18 O 0.41765 0.25000 0.31154 1.00000
  O19 O 0.91765 0.75000 0.18846 1.00000
  O20 O 0.58235 0.75000 0.68846 1.00000
Get direct link