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Sm2AsO5

Alexandria ALEX

Alex-ID: agm005995038 · Space group: P2_1/c (#14)

Basic Information

Formula
Sm2AsO5
Alex-ID
agm005995038
Elements
3
Sites
32
Space group
P2_1/c (#14)
Crystal system
monoclinic
Volume
478.02
ų
Cell a
6.9778
Å
Cell b
7.3640
Å
Cell c
9.3108
Å
α angle
90.00
°
β angle
92.39
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2AsO5
Sm
8.00 · 25.0%
As
4.00 · 12.5%
O
20.00 · 62.5%

Energy & Stability

Energy above hull
0.1246
eV/atom
Formation energy
-3.0210
eV/atom
Corrected total energy
-252.2215
eV
Raw total energy
-238.1757
eV

Electronic Structure

Indirect band gap
0.0041
eV
Direct band gap
0.0445
eV
DOS at Fermi level
6.9419
Total magnetisation
3.4389
μB

Additional Information

Prototype ID

AB2C5_42_spg14

Decomposition

Sm2As4O9 Sm2O3 SmAsO4

Computed at

2023-09-03 01:11:32

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: agm005995038).

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 agm005995038
data_agm005995038
_cell_length_a     6.97782
_cell_length_b     7.36405
_cell_length_c     9.31082
_cell_angle_alpha  90.00000
_cell_angle_beta   92.39290
_cell_angle_gamma  90.00000
_cell_volume       478.01949
_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
  Sm1 Sm 0.72698 0.87862 0.02483 1.00000
  Sm2 Sm 0.22698 0.62138 0.02483 1.00000
  Sm3 Sm 0.43294 0.85615 0.34641 1.00000
  Sm4 Sm 0.93294 0.64385 0.34641 1.00000
  Sm5 Sm 0.06706 0.35615 0.65359 1.00000
  Sm6 Sm 0.56706 0.14385 0.65359 1.00000
  Sm7 Sm 0.77302 0.37862 0.97517 1.00000
  Sm8 Sm 0.27302 0.12138 0.97517 1.00000
  As1 As 0.42265 0.39328 0.31386 1.00000
  As2 As 0.92265 0.10672 0.31386 1.00000
  As3 As 0.07735 0.89328 0.68614 1.00000
  As4 As 0.57735 0.60672 0.68614 1.00000
  O1 O 0.94104 0.14039 0.12046 1.00000
  O2 O 0.90734 0.62257 0.09674 1.00000
  O3 O 0.44104 0.35961 0.12046 1.00000
  O4 O 0.40734 0.87743 0.09674 1.00000
  O5 O 0.74508 0.89500 0.27583 1.00000
  O6 O 0.00853 0.32354 0.39648 1.00000
  O7 O 0.24508 0.60500 0.27583 1.00000
  O8 O 0.60933 0.55053 0.35499 1.00000
  O9 O 0.50853 0.17646 0.39648 1.00000
  O10 O 0.10933 0.94947 0.35499 1.00000
  O11 O 0.89067 0.05053 0.64501 1.00000
  O12 O 0.49147 0.82354 0.60352 1.00000
  O13 O 0.39067 0.44947 0.64501 1.00000
  O14 O 0.75492 0.39500 0.72417 1.00000
  O15 O 0.99147 0.67646 0.60352 1.00000
  O16 O 0.25492 0.10500 0.72417 1.00000
  O17 O 0.59266 0.12257 0.90326 1.00000
  O18 O 0.55896 0.64039 0.87954 1.00000
  O19 O 0.09266 0.37743 0.90326 1.00000
  O20 O 0.05896 0.85961 0.87954 1.00000
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