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CaMgB14

Alexandria ALEX

Alex-ID: agm005754586 · Space group: Imma (#74)

Basic Information

Formula
CaMgB14
Alex-ID
agm005754586
Elements
3
Sites
32
Space group
Imma (#74)
Crystal system
orthorhombic
Volume
261.95
ų
Cell a
5.9424
Å
Cell b
7.3719
Å
Cell c
7.3719
Å
α angle
68.22
°
β angle
66.23
°
γ angle
66.23
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
CaMgB14
Ca
2.00 · 6.3%
Mg
2.00 · 6.3%
B
28.00 · 87.5%

Energy & Stability

Energy above hull
0.0153
eV/atom
Formation energy
-0.2293
eV/atom
Corrected total energy
-201.4988
eV
Raw total energy
-201.4988
eV

Electronic Structure

Indirect band gap
1.4858
eV
Direct band gap
1.6765
eV
DOS at Fermi level
-0.0001
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC14_1_spg74

Decomposition

MgB7 B CaB6

Computed at

2023-07-18 13:55:02.646405

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: agm005754586).

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 agm005754586
data_agm005754586
_cell_length_a     5.94239
_cell_length_b     7.37185
_cell_length_c     7.37185
_cell_angle_alpha  68.21988
_cell_angle_beta   66.23128
_cell_angle_gamma  66.23128
_cell_volume       261.95202
_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 0.25000 0.38909 0.11091 1.00000
  Ca2 Ca 0.75000 0.61091 0.88909 1.00000
  Mg1 Mg 0.50000 0.00000 0.50000 1.00000
  Mg2 Mg 0.00000 0.00000 0.50000 1.00000
  B1 B 0.66534 0.36161 0.30771 1.00000
  B2 B 0.33466 0.63839 0.69229 1.00000
  B3 B 0.16534 0.80771 0.86161 1.00000
  B4 B 0.83466 0.19229 0.13839 1.00000
  B5 B 0.13669 0.23977 0.48684 1.00000
  B6 B 0.86331 0.76023 0.51316 1.00000
  B7 B 0.63669 0.98684 0.73977 1.00000
  B8 B 0.36331 0.01316 0.26023 1.00000
  B9 B 0.08271 0.08905 0.74553 1.00000
  B10 B 0.91729 0.91095 0.25447 1.00000
  B11 B 0.58271 0.24553 0.58905 1.00000
  B12 B 0.41729 0.75447 0.41095 1.00000
  B13 B 0.71786 0.60111 0.27910 1.00000
  B14 B 0.59808 0.39889 0.72090 1.00000
  B15 B 0.21786 0.77910 0.10111 1.00000
  B16 B 0.09808 0.22090 0.89889 1.00000
  B17 B 0.28214 0.39889 0.72090 1.00000
  B18 B 0.40192 0.60111 0.27910 1.00000
  B19 B 0.78214 0.22090 0.89889 1.00000
  B20 B 0.90192 0.77910 0.10111 1.00000
  B21 B 0.32495 0.96840 0.87748 1.00000
  B22 B 0.17082 0.03160 0.12252 1.00000
  B23 B 0.82495 0.37748 0.46840 1.00000
  B24 B 0.67082 0.62252 0.53160 1.00000
  B25 B 0.67505 0.03160 0.12252 1.00000
  B26 B 0.82918 0.96840 0.87748 1.00000
  B27 B 0.17505 0.62252 0.53160 1.00000
  B28 B 0.32918 0.37748 0.46840 1.00000
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