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K2Ta4O11

Alexandria ALEX

Alex-ID: agm003242545 · 空间群: R-3c (#167)

基础信息

化学式
K2Ta4O11
Alex-ID
agm003242545
元素数
3
位点数
34
空间群
R-3c (#167)
晶系
trigonal
体积
434.00
ų
晶胞参数 a
12.9722
Å
晶胞参数 b
12.9722
Å
晶胞参数 c
12.9722
Å
α 角
28.32
°
β 角
28.32
°
γ 角
28.32
°

组成

元素组成(原子分数)
组成信息
化学式
K2Ta4O11
K
4.00 · 11.8%
O
22.00 · 64.7%
Ta
8.00 · 23.5%

能量与稳定性

凸包上方能量
0.0037
eV/atom
形成能
-3.2105
eV/atom
校正后总能量
-317.4678
eV
原始总能量
-302.0175
eV

电子结构

间接带隙
3.3878
eV
直接带隙
3.5004
eV
费米能级态密度
0.0000
总磁矩
0.0000
μB

其他信息

原型 ID

A2B4C11_0_spg167

分解产物

K3Ta7O19 KTaO3

计算时间

2022-01-02 02:23:00

引用参考

Alexandria 官方页面
https://alexandria.icams.rub.de/
参考引用

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm003242545).

文献引用

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}
}

晶体结构 3D 渲染

加载 3D 结构...

样式: Ball & Stick
原始 CIF 数据
# CIF generated by HEAS from Alexandria entry agm003242545
data_agm003242545
_cell_length_a     12.97224
_cell_length_b     12.97224
_cell_length_c     12.97224
_cell_angle_alpha  28.31607
_cell_angle_beta   28.31607
_cell_angle_gamma  28.31607
_cell_volume       433.99689
_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 0.82635 0.82635 0.82635 1.00000
  K2 K 0.32635 0.32635 0.32635 1.00000
  K3 K 0.17365 0.17365 0.17365 1.00000
  K4 K 0.67365 0.67365 0.67365 1.00000
  O1 O 0.26107 0.56942 0.76462 1.00000
  O2 O 0.76462 0.26107 0.56942 1.00000
  O3 O 0.56942 0.76462 0.26107 1.00000
  O4 O 0.26462 0.06942 0.76107 1.00000
  O5 O 0.76107 0.26462 0.06942 1.00000
  O6 O 0.06942 0.76107 0.26462 1.00000
  O7 O 0.73893 0.43058 0.23538 1.00000
  O8 O 0.23538 0.73893 0.43058 1.00000
  O9 O 0.43058 0.23538 0.73893 1.00000
  O10 O 0.73538 0.93058 0.23893 1.00000
  O11 O 0.23893 0.73538 0.93058 1.00000
  O12 O 0.93058 0.23893 0.73538 1.00000
  O13 O 0.90651 0.90651 0.90651 1.00000
  O14 O 0.40651 0.40651 0.40651 1.00000
  O15 O 0.09349 0.09349 0.09349 1.00000
  O16 O 0.59349 0.59349 0.59349 1.00000
  O17 O 0.00571 0.49429 0.25000 1.00000
  O18 O 0.25000 0.00571 0.49429 1.00000
  O19 O 0.49429 0.25000 0.00571 1.00000
  O20 O 0.75000 0.99429 0.50571 1.00000
  O21 O 0.50571 0.75000 0.99429 1.00000
  O22 O 0.99429 0.50571 0.75000 1.00000
  Ta1 Ta 0.50000 0.50000 0.50000 1.00000
  Ta2 Ta 0.00000 0.00000 0.00000 1.00000
  Ta3 Ta 0.25000 0.61460 0.88540 1.00000
  Ta4 Ta 0.88540 0.25000 0.61460 1.00000
  Ta5 Ta 0.61460 0.88540 0.25000 1.00000
  Ta6 Ta 0.38540 0.11460 0.75000 1.00000
  Ta7 Ta 0.75000 0.38540 0.11460 1.00000
  Ta8 Ta 0.11460 0.75000 0.38540 1.00000
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