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Pm8SmSi4

Alexandria ALEX

Alex-ID: agm003671817 · 空间群: I4/mmm (#139)

Alexandria Database API

基础信息

化学式
Pm8SmSi4
Alex-ID
agm003671817
元素数
3
位点数
13
空间群
I4/mmm (#139)
晶系
tetragonal
体积
353.32
ų
晶胞参数 a
6.3102
Å
晶胞参数 b
8.1208
Å
晶胞参数 c
8.1208
Å
α 角
81.32
°
β 角
67.14
°
γ 角
67.14
°

组成

元素组成（原子分数）
组成信息
化学式
Pm8SmSi4
Pm
8.00 · 61.5%
Sm
1.00 · 7.7%
Si
4.00 · 30.8%

能量与稳定性

凸包上方能量
0.2104
eV/atom
形成能
-0.2926
eV/atom
校正后总能量
-68.2249
eV
原始总能量
-68.2249
eV

电子结构

间接带隙
0.0000
eV
直接带隙
0.0000
eV
费米能级态密度
12.5879
总磁矩
-0.0001
μB

其他信息

原型 ID

AB4C8_2_spg139

分解产物

Pm3Si2 Pm2SmSi2 Pm

计算时间

2022-04-21 08:16:41.910020

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: agm003671817).

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 agm003671817
data_agm003671817
_cell_length_a     6.31016
_cell_length_b     8.12080
_cell_length_c     8.12080
_cell_angle_alpha  81.31822
_cell_angle_beta   67.13767
_cell_angle_gamma  67.13767
_cell_volume       353.32436
_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
  Pm1 Pm 0.00000 0.32538 0.67462 1.00000
  Pm2 Pm 1.00000 0.67462 0.32538 1.00000
  Pm3 Pm 0.32538 0.67462 0.67462 1.00000
  Pm4 Pm 0.67462 0.32538 0.32538 1.00000
  Pm5 Pm 0.50000 0.78697 0.21303 1.00000
  Pm6 Pm 0.50000 0.21303 0.78697 1.00000
  Pm7 Pm 0.28697 0.21303 0.21303 1.00000
  Pm8 Pm 0.71303 0.78697 0.78697 1.00000
  Sm1 Sm 0.00000 0.00000 0.00000 1.00000
  Si1 Si 0.00000 0.00000 0.50000 1.00000
  Si2 Si 0.50000 0.00000 0.50000 1.00000
  Si3 Si 0.00000 0.50000 0.00000 1.00000
  Si4 Si 0.50000 0.50000 0.00000 1.00000
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