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KMgCuTe2

Alexandria ALEX

Alex-ID: agm045864341 · Space group: I-4m2 (#119)

Basic Information

Formula
KMgCuTe2
Alex-ID
agm045864341
Elements
4
Sites
5
Space group
I-4m2 (#119)
Crystal system
tetragonal
Volume
147.33
ų
Cell a
4.3916
Å
Cell b
4.3916
Å
Cell c
8.2489
Å
α angle
74.54
°
β angle
105.46
°
γ angle
89.93
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KMgCuTe2
K
1.00 · 20.0%
Mg
1.00 · 20.0%
Cu
1.00 · 20.0%
Te
2.00 · 40.0%

Energy & Stability

Energy above hull
0.0094
eV/atom
Formation energy
-0.7070
eV/atom
Corrected total energy
-16.6753
eV
Raw total energy
-16.6753
eV

Electronic Structure

Indirect band gap
1.4675
eV
Direct band gap
1.5254
eV
DOS at Fermi level
-0.0001
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_242_spg1

Decomposition

K2Mg2Te3 K2(CuTe)5 MgTe Cu

Computed at

2025-04-15 01:48:20

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: agm045864341).

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 agm045864341
data_agm045864341
_cell_length_a     4.39158
_cell_length_b     4.39158
_cell_length_c     8.24886
_cell_angle_alpha  74.53527
_cell_angle_beta   105.46473
_cell_angle_gamma  89.93167
_cell_volume       147.32821
_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
  K1 K 0.99828 0.99828 0.50000 1.00000
  Mg1 Mg 0.24923 0.24923 0.00000 1.00000
  Cu1 Cu 0.74901 0.74901 0.00000 1.00000
  Te1 Te 0.63818 0.35981 0.77846 1.00000
  Te2 Te 0.35981 0.63818 0.22154 1.00000
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