CsK2Sm(Si2O5)3
Alexandria ALEXAlex-ID: agm010371872 · Space group: Imma (#74)
Basic Information
Formula
CsK2Sm(Si2O5)3
Alex-ID
agm010371872
Elements
5
Sites
50
Space group
Imma (#74)
Crystal system
orthorhombic
Volume
788.54
ų
Cell a
10.6016
Å
Cell b
10.6016
Å
Cell c
10.6016
Å
α angle
130.37
°
β angle
114.53
°
γ angle
86.40
°
Composition
Element Composition (atomic fraction)
Composition Info
Formula
CsK2Sm(Si2O5)3
Cs
2.00 · 4.0%
K
4.00 · 8.0%
Sm
2.00 · 4.0%
Si
12.00 · 24.0%
O
30.00 · 60.0%
Energy & Stability
Energy above hull
0.0063
eV/atom
Formation energy
-3.1742
eV/atom
Corrected total energy
-388.1017
eV
Raw total energy
-367.0329
eV
Electronic Structure
Indirect band gap
4.7635
eV
Direct band gap
4.7989
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB
Additional Information
Prototype ID
ABC2D6E15_2_spg74
Decomposition
K3SmSi2O7 Cs3SmSi7O17 K3SmSi7O17
Computed at
2025-03-01 11:49:18
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: agm010371872).
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
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Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm010371872
data_agm010371872
_cell_length_a 10.60160
_cell_length_b 10.60160
_cell_length_c 10.60160
_cell_angle_alpha 130.37408
_cell_angle_beta 114.52505
_cell_angle_gamma 86.39565
_cell_volume 788.53736
_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
Cs1 Cs 0.07885 0.25000 0.82885 1.00000
Cs2 Cs 0.92115 0.75000 0.17115 1.00000
K1 K 0.24392 0.74392 0.00000 1.00000
K2 K 0.75608 0.25608 0.00000 1.00000
K3 K 0.24392 0.24392 0.50000 1.00000
K4 K 0.75608 0.75608 0.50000 1.00000
Sm1 Sm 0.50000 0.50000 0.00000 1.00000
Sm2 Sm 0.00000 0.00000 0.00000 1.00000
Si1 Si 0.34512 0.01877 0.65923 1.00000
Si2 Si 0.62392 0.34894 0.27498 1.00000
Si3 Si 0.14046 0.81411 0.65923 1.00000
Si4 Si 0.57395 0.84894 0.72502 1.00000
Si5 Si 0.42605 0.15106 0.27498 1.00000
Si6 Si 0.65488 0.31411 0.67365 1.00000
Si7 Si 0.65488 0.98123 0.34077 1.00000
Si8 Si 0.37608 0.65106 0.72502 1.00000
Si9 Si 0.85954 0.51877 0.67365 1.00000
Si10 Si 0.85954 0.18589 0.34077 1.00000
Si11 Si 0.34512 0.68589 0.32635 1.00000
Si12 Si 0.14046 0.48123 0.32635 1.00000
O1 O 0.96569 0.71132 0.86286 1.00000
O2 O 0.49498 0.00668 0.78267 1.00000
O3 O 0.03431 0.28868 0.13714 1.00000
O4 O 0.39622 0.57537 0.82084 1.00000
O5 O 0.49498 0.71231 0.48830 1.00000
O6 O 0.65154 0.39717 0.86286 1.00000
O7 O 0.20507 0.94170 0.64677 1.00000
O8 O 0.65154 0.78868 0.25437 1.00000
O9 O 0.25453 0.07537 0.17916 1.00000
O10 O 0.27599 0.49332 0.48830 1.00000
O11 O 0.79493 0.05830 0.35323 1.00000
O12 O 0.60378 0.42463 0.17916 1.00000
O13 O 0.96569 0.10283 0.25437 1.00000
O14 O 0.50502 0.28769 0.51170 1.00000
O15 O 0.34846 0.60283 0.13714 1.00000
O16 O 0.68454 0.11951 0.56503 1.00000
O17 O 0.50502 0.99332 0.21733 1.00000
O18 O 0.05448 0.61951 0.43497 1.00000
O19 O 0.34846 0.21132 0.74563 1.00000
O20 O 0.79493 0.44170 0.73663 1.00000
O21 O 0.47163 0.25000 0.22163 1.00000
O22 O 0.03431 0.89717 0.74563 1.00000
O23 O 0.20507 0.55830 0.26337 1.00000
O24 O 0.52837 0.75000 0.77837 1.00000
O25 O 0.72401 0.21231 0.21733 1.00000
O26 O 0.27599 0.78769 0.78267 1.00000
O27 O 0.72401 0.50668 0.51170 1.00000
O28 O 0.94552 0.38049 0.56503 1.00000
O29 O 0.74547 0.92463 0.82084 1.00000
O30 O 0.31546 0.88049 0.43497 1.00000
