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Ca2ZnGe2O7

Alexandria ALEX

Alex-ID: agm003229879 · Space group: P-42_1m (#113)

Basic Information

Formula
Ca2ZnGe2O7
Alex-ID
agm003229879
Elements
4
Sites
24
Space group
P-42_1m (#113)
Crystal system
tetragonal
Volume
339.59
ų
Cell a
8.0562
Å
Cell b
8.0562
Å
Cell c
5.2323
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2ZnGe2O7
Ca
4.00 · 16.7%
Zn
2.00 · 8.3%
Ge
4.00 · 16.7%
O
14.00 · 58.3%

Energy & Stability

Energy above hull
0.0267
eV/atom
Formation energy
-2.5673
eV/atom
Corrected total energy
-160.0631
eV
Raw total energy
-150.2310
eV

Electronic Structure

Indirect band gap
3.0484
eV
Direct band gap
3.0484
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D7_16_spg113

Decomposition

CaGeO3 Zn2GeO4 Ca2GeO4

Computed at

2021-12-11 09:15:45.735724

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: agm003229879).

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 agm003229879
data_agm003229879
_cell_length_a     8.05619
_cell_length_b     8.05619
_cell_length_c     5.23233
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       339.58956
_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 0.33292 0.83292 0.50845 1.00000
  Ca2 Ca 0.16708 0.33292 0.49155 1.00000
  Ca3 Ca 0.83292 0.66708 0.49155 1.00000
  Ca4 Ca 0.66708 0.16708 0.50845 1.00000
  Zn1 Zn 0.50000 0.50000 0.00000 1.00000
  Zn2 Zn 0.00000 0.00000 0.00000 1.00000
  Ge1 Ge 0.14492 0.64492 0.94359 1.00000
  Ge2 Ge 0.35508 0.14492 0.05641 1.00000
  Ge3 Ge 0.64492 0.85508 0.05641 1.00000
  Ge4 Ge 0.85508 0.35508 0.94359 1.00000
  O1 O 0.67339 0.41280 0.77425 1.00000
  O2 O 0.32661 0.58720 0.77425 1.00000
  O3 O 0.41280 0.32661 0.22575 1.00000
  O4 O 0.58720 0.67339 0.22575 1.00000
  O5 O 0.91280 0.17339 0.77425 1.00000
  O6 O 0.82661 0.91280 0.22575 1.00000
  O7 O 0.17339 0.08720 0.22575 1.00000
  O8 O 0.08720 0.82661 0.77425 1.00000
  O9 O 0.86007 0.36007 0.27533 1.00000
  O10 O 0.63993 0.86007 0.72467 1.00000
  O11 O 0.50000 0.00000 0.20400 1.00000
  O12 O 0.00000 0.50000 0.79600 1.00000
  O13 O 0.13993 0.63993 0.27533 1.00000
  O14 O 0.36007 0.13993 0.72467 1.00000
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