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Ca4Sm2TmTh

Alexandria ALEX

Alex-ID: agm012634839 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
Ca4Sm2TmTh
Alex-ID
agm012634839
Elements
4
Sites
8
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
284.82
ų
Cell a
5.0385
Å
Cell b
5.0385
Å
Cell c
11.2194
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca4Sm2TmTh
Ca
4.00 · 50.0%
Sm
2.00 · 25.0%
Tm
1.00 · 12.5%
Th
1.00 · 12.5%

Energy & Stability

Energy above hull
0.2165
eV/atom
Formation energy
0.2119
eV/atom
Corrected total energy
-27.6541
eV
Raw total energy
-27.6541
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
13.8449
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_452_spg10

Decomposition

Sm5(TmTh)2 SmTh4 Ca Tm2Th

Computed at

2024-06-28 23:41:40.632936

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: agm012634839).

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 agm012634839
data_agm012634839
_cell_length_a     5.03851
_cell_length_b     5.03851
_cell_length_c     11.21943
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       284.82309
_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 0.50000 0.75516 1.00000
  Ca2 Ca 0.00000 0.50000 0.24484 1.00000
  Ca3 Ca 0.50000 0.00000 0.75516 1.00000
  Ca4 Ca 0.50000 0.00000 0.24484 1.00000
  Sm1 Sm 0.00000 0.00000 0.50000 1.00000
  Sm2 Sm 0.50000 0.50000 0.50000 1.00000
  Tm1 Tm 0.50000 0.50000 0.00000 1.00000
  Th1 Th 0.00000 0.00000 0.00000 1.00000
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