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CaSm(FeAs3)8

Alexandria ALEX

Alex-ID: agm022277635 · Space group: C2/m (#12)

Basic Information

Formula
CaSm(FeAs3)8
Alex-ID
agm022277635
Elements
4
Sites
34
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
582.65
ų
Cell a
7.2334
Å
Cell b
7.2334
Å
Cell c
11.8107
Å
α angle
90.01
°
β angle
89.99
°
γ angle
109.46
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
CaSm(FeAs3)8
Ca
1.00 · 2.9%
Sm
1.00 · 2.9%
Fe
8.00 · 23.5%
As
24.00 · 70.6%

Energy & Stability

Energy above hull
0.0007
eV/atom
Formation energy
-0.3457
eV/atom
Corrected total energy
-197.7702
eV
Raw total energy
-197.7702
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0044
eV
DOS at Fermi level
29.6051
Total magnetisation
3.0895
μB

Additional Information

Prototype ID

ABC8D24_0_spg12

Decomposition

Sm(FeAs3)4 CaAs3 FeAs2 As

Computed at

2025-01-04 01:17:24

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: agm022277635).

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 agm022277635
data_agm022277635
_cell_length_a     7.23338
_cell_length_b     7.23338
_cell_length_c     11.81068
_cell_angle_alpha  90.00878
_cell_angle_beta   89.99122
_cell_angle_gamma  109.46092
_cell_volume       582.65163
_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
  Ca1 Ca 0.00000 0.00000 0.50000 1.00000
  Sm1 Sm 0.50000 0.50000 0.00000 1.00000
  Fe1 Fe 0.74931 0.74942 0.24897 1.00000
  Fe2 Fe 0.25069 0.25058 0.75103 1.00000
  Fe3 Fe 0.00000 0.50000 0.00000 1.00000
  Fe4 Fe 0.50000 0.00000 0.50000 1.00000
  Fe5 Fe 0.50000 0.00000 0.00000 1.00000
  Fe6 Fe 0.00000 0.50000 0.50000 1.00000
  Fe7 Fe 0.25058 0.25069 0.24897 1.00000
  Fe8 Fe 0.74942 0.74931 0.75103 1.00000
  As1 As 0.82777 0.48387 0.17169 1.00000
  As2 As 0.32560 0.98444 0.67088 1.00000
  As3 As 0.67440 0.01556 0.32912 1.00000
  As4 As 0.17223 0.51613 0.82831 1.00000
  As5 As 0.51613 0.17223 0.17169 1.00000
  As6 As 0.01556 0.67440 0.67088 1.00000
  As7 As 0.98444 0.32560 0.32912 1.00000
  As8 As 0.48387 0.82777 0.82831 1.00000
  As9 As 0.73431 0.57959 0.42226 1.00000
  As10 As 0.23597 0.08006 0.92231 1.00000
  As11 As 0.76403 0.91994 0.07769 1.00000
  As12 As 0.26569 0.42041 0.57774 1.00000
  As13 As 0.08006 0.23597 0.07769 1.00000
  As14 As 0.57959 0.73431 0.57774 1.00000
  As15 As 0.42041 0.26569 0.42226 1.00000
  As16 As 0.91994 0.76403 0.92231 1.00000
  As17 As 0.25028 0.74972 0.09386 1.00000
  As18 As 0.75192 0.24808 0.59327 1.00000
  As19 As 0.24808 0.75192 0.40673 1.00000
  As20 As 0.74972 0.25028 0.90614 1.00000
  As21 As 0.40610 0.59390 0.24926 1.00000
  As22 As 0.90677 0.09323 0.74861 1.00000
  As23 As 0.09323 0.90677 0.25139 1.00000
  As24 As 0.59390 0.40610 0.75074 1.00000
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