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SmMgB14

Alexandria ALEX

Alex-ID: agm005754659 · Space group: Imma (#74)

Basic Information

Formula
SmMgB14
Alex-ID
agm005754659
Elements
3
Sites
32
Space group
Imma (#74)
Crystal system
orthorhombic
Volume
264.66
ų
Cell a
5.9347
Å
Cell b
7.4064
Å
Cell c
7.4064
Å
α angle
68.30
°
β angle
66.38
°
γ angle
66.38
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SmMgB14
Sm
2.00 · 6.3%
Mg
2.00 · 6.3%
B
28.00 · 87.5%

Energy & Stability

Energy above hull
0.0503
eV/atom
Formation energy
-0.2124
eV/atom
Corrected total energy
-206.4010
eV
Raw total energy
-206.4010
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
3.7167
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC14_1_spg74

Decomposition

SmB6 MgB7 B

Computed at

2023-07-18 13:56:30.051704

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: agm005754659).

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 agm005754659
data_agm005754659
_cell_length_a     5.93473
_cell_length_b     7.40639
_cell_length_c     7.40639
_cell_angle_alpha  68.29509
_cell_angle_beta   66.38119
_cell_angle_gamma  66.38120
_cell_volume       264.65934
_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 0.25000 0.38959 0.11041 1.00000
  Sm2 Sm 0.75000 0.61041 0.88959 1.00000
  Mg1 Mg 0.50000 0.00000 0.50000 1.00000
  Mg2 Mg 0.00000 0.00000 0.50000 1.00000
  B1 B 0.66640 0.36355 0.30364 1.00000
  B2 B 0.33360 0.63645 0.69636 1.00000
  B3 B 0.16640 0.80364 0.86355 1.00000
  B4 B 0.83360 0.19636 0.13645 1.00000
  B5 B 0.13294 0.23973 0.49439 1.00000
  B6 B 0.86706 0.76027 0.50561 1.00000
  B7 B 0.63294 0.99439 0.73973 1.00000
  B8 B 0.36706 0.00561 0.26027 1.00000
  B9 B 0.08333 0.08599 0.74736 1.00000
  B10 B 0.91667 0.91401 0.25264 1.00000
  B11 B 0.58333 0.24736 0.58599 1.00000
  B12 B 0.41667 0.75264 0.41401 1.00000
  B13 B 0.71988 0.60035 0.27947 1.00000
  B14 B 0.59970 0.39965 0.72053 1.00000
  B15 B 0.21988 0.77947 0.10035 1.00000
  B16 B 0.09970 0.22053 0.89965 1.00000
  B17 B 0.28012 0.39965 0.72053 1.00000
  B18 B 0.40030 0.60035 0.27947 1.00000
  B19 B 0.78012 0.22053 0.89965 1.00000
  B20 B 0.90030 0.77947 0.10035 1.00000
  B21 B 0.32443 0.97043 0.87696 1.00000
  B22 B 0.17182 0.02957 0.12304 1.00000
  B23 B 0.82443 0.37696 0.47043 1.00000
  B24 B 0.67182 0.62304 0.52957 1.00000
  B25 B 0.67557 0.02957 0.12304 1.00000
  B26 B 0.82818 0.97043 0.87696 1.00000
  B27 B 0.17557 0.62304 0.52957 1.00000
  B28 B 0.32818 0.37696 0.47043 1.00000
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