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K2Er(HgTe2)2

Alexandria ALEX

Alex-ID: agm004564321 · Space group: C2/m (#12)

Basic Information

Formula
K2Er(HgTe2)2
Alex-ID
agm004564321
Elements
4
Sites
9
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
310.44
ų
Cell a
4.4561
Å
Cell b
8.7986
Å
Cell c
8.9797
Å
α angle
113.65
°
β angle
104.37
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Er(HgTe2)2
K
2.00 · 22.2%
Er
1.00 · 11.1%
Hg
2.00 · 22.2%
Te
4.00 · 44.4%

Energy & Stability

Energy above hull
0.0910
eV/atom
Formation energy
-0.7587
eV/atom
Corrected total energy
-26.8842
eV
Raw total energy
-26.8842
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.0193
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D4_211_spg12

Decomposition

K2HgTe2 KErTe2 Hg HgTe

Computed at

2022-06-19 14:45:18.852990

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: agm004564321).

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 agm004564321
data_agm004564321
_cell_length_a     4.45613
_cell_length_b     8.79861
_cell_length_c     8.97969
_cell_angle_alpha  113.65312
_cell_angle_beta   104.36646
_cell_angle_gamma  90.00000
_cell_volume       310.43946
_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 0.12815 0.58196 0.25629 1.00000
  K2 K 0.87185 0.41804 0.74371 1.00000
  Er1 Er 0.00000 0.00000 0.00000 1.00000
  Hg1 Hg 0.68905 0.01149 0.37810 1.00000
  Hg2 Hg 0.31095 0.98851 0.62190 1.00000
  Te1 Te 0.18909 0.23444 0.37817 1.00000
  Te2 Te 0.81091 0.76556 0.62183 1.00000
  Te3 Te 0.51471 0.76599 0.02943 1.00000
  Te4 Te 0.48529 0.23401 0.97057 1.00000
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