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Er2Ga7Cu12

Alexandria ALEX

Alex-ID: agm005673084 · Space group: P-3 (#147)

Basic Information

Formula
Er2Ga7Cu12
Alex-ID
agm005673084
Elements
3
Sites
21
Space group
P-3 (#147)
Crystal system
trigonal
Volume
320.95
ų
Cell a
3.8444
Å
Cell b
9.8184
Å
Cell c
9.8184
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Er2Ga7Cu12
Er
2.00 · 9.5%
Ga
7.00 · 33.3%
Cu
12.00 · 57.1%

Energy & Stability

Energy above hull
0.0956
eV/atom
Formation energy
-0.1432
eV/atom
Corrected total energy
-83.2567
eV
Raw total energy
-83.2567
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
6.7071
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B7C12_5_spg147

Decomposition

Er2Ga5Cu3 Er(GaCu)6 Cu

Computed at

2023-06-21 07:28:57.491348

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: agm005673084).

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 agm005673084
data_agm005673084
_cell_length_a     3.84443
_cell_length_b     9.81839
_cell_length_c     9.81840
_cell_angle_alpha  119.99999
_cell_angle_beta   89.99997
_cell_angle_gamma  90.00001
_cell_volume       320.95482
_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
  Er1 Er 0.24130 0.33333 0.66667 1.00000
  Er2 Er 0.75870 0.66667 0.33333 1.00000
  Ga1 Ga 0.50000 0.00000 0.00000 1.00000
  Ga2 Ga 0.26137 0.88249 0.29494 1.00000
  Ga3 Ga 0.26137 0.41245 0.11751 1.00000
  Ga4 Ga 0.26137 0.70506 0.58755 1.00000
  Ga5 Ga 0.73863 0.11751 0.70506 1.00000
  Ga6 Ga 0.73863 0.58755 0.88249 1.00000
  Ga7 Ga 0.73863 0.29494 0.41245 1.00000
  Cu1 Cu 0.24248 0.62431 0.05485 1.00000
  Cu2 Cu 0.24248 0.43053 0.37568 1.00000
  Cu3 Cu 0.24248 0.94515 0.56947 1.00000
  Cu4 Cu 0.75752 0.37569 0.94515 1.00000
  Cu5 Cu 0.75752 0.56947 0.62432 1.00000
  Cu6 Cu 0.75752 0.05485 0.43053 1.00000
  Cu7 Cu 0.23013 0.12210 0.26283 1.00000
  Cu8 Cu 0.23013 0.14073 0.87790 1.00000
  Cu9 Cu 0.23014 0.73717 0.85927 1.00000
  Cu10 Cu 0.76987 0.87790 0.73717 1.00000
  Cu11 Cu 0.76987 0.85927 0.12210 1.00000
  Cu12 Cu 0.76986 0.26283 0.14073 1.00000
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