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HEAS Data Platform · Materials Science Database

KPm2GaO5

Alexandria ALEX

Alex-ID: agm005145336 · Space group: I4/mcm (#140)

Basic Information

Formula
KPm2GaO5
Alex-ID
agm005145336
Elements
4
Sites
18
Space group
I4/mcm (#140)
Crystal system
tetragonal
Volume
261.32
ų
Cell a
6.7887
Å
Cell b
6.7887
Å
Cell c
7.4293
Å
α angle
117.19
°
β angle
117.19
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KPm2GaO5
K
2.00 · 11.1%
Pm
4.00 · 22.2%
Ga
2.00 · 11.1%
O
10.00 · 55.6%

Energy & Stability

Energy above hull
0.0769
eV/atom
Formation energy
-3.0316
eV/atom
Corrected total energy
-131.4156
eV
Raw total energy
-124.3927
eV

Electronic Structure

Indirect band gap
3.2486
eV
Direct band gap
3.3235
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D5_41_spg140

Decomposition

KGaO2 Pm2O3

Computed at

2023-01-17 12:25:52.602462

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: agm005145336).

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 agm005145336
data_agm005145336
_cell_length_a     6.78870
_cell_length_b     6.78870
_cell_length_c     7.42927
_cell_angle_alpha  117.18652
_cell_angle_beta   117.18652
_cell_angle_gamma  90.00000
_cell_volume       261.31818
_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 0.25000 0.25000 0.50000 1.00000
  K2 K 0.75000 0.75000 0.50000 1.00000
  Pm1 Pm 0.18045 0.31955 0.00000 1.00000
  Pm2 Pm 0.68045 0.18045 1.00000 1.00000
  Pm3 Pm 0.31955 0.81955 0.00000 1.00000
  Pm4 Pm 0.81955 0.68045 0.00000 1.00000
  Ga1 Ga 0.25000 0.75000 0.50000 1.00000
  Ga2 Ga 0.75000 0.25000 0.50000 1.00000
  O1 O 0.99599 0.49599 0.26543 1.00000
  O2 O 0.73056 0.23056 0.73457 1.00000
  O3 O 0.00401 0.50401 0.73457 1.00000
  O4 O 0.23056 0.00401 0.73457 1.00000
  O5 O 0.50401 0.73056 0.73457 1.00000
  O6 O 0.76944 0.99599 0.26543 1.00000
  O7 O 0.49599 0.26944 0.26543 1.00000
  O8 O 0.26944 0.76944 0.26543 1.00000
  O9 O 0.50000 0.50000 0.00000 1.00000
  O10 O 0.00000 0.00000 0.00000 1.00000
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