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HEAS Data Platform · 材料科学计算数据库

NdSi2

传统材料 TRA 弹性数据 ELA

MP-ID: mp-884 · 空间群: I4_1/amd (#141)

基础信息

化学式
NdSi2
MP-ID
mp-884
元素数
2
位点数
6
密度
5.3184
g/cm³
体积
125.15
ų
晶胞参数 a
4.3222
Å
晶胞参数 b
4.3222
Å
晶胞参数 c
7.3634
Å
α 角
107.07
°
β 角
107.07
°
γ 角
90.00
°
空间群
I4_1/amd
点群
4/mmm
晶体系统
Tetragonal
布拉维格子
Tetragonal I
稳定性
是
堆积分数
0.7400

X 射线衍射

衍射图谱
横轴为 2θ (°),纵轴为相对强度,CuKa , λ=1.5406 Å
衍射峰(Top 24)
2θd (Å)Ihkl
21.60 4.1134 78.9 (1,0,-1)
26.61 3.3496 34.0 (0,0,2)
28.74 3.1059 100.0 (1,0,-2)
32.19 2.7805 99.7 (1,1,-2)
32.19 2.7805 99.7 (1,-1,1)
39.57 2.2775 74.4 (1,0,-3)
41.80 2.1611 66.9 (2,0,-1)
47.53 1.9131 5.4 (1,2,-2)
47.53 1.9131 5.4 (2,1,-2)
47.53 1.9131 10.7 (2,-1,-1)
50.24 1.8159 18.6 (2,0,-3)
50.24 1.8159 6.2 (2,0,1)
50.63 1.8031 3.8 (1,1,-4)
50.63 1.8031 7.6 (1,1,2)
50.63 1.8031 3.8 (1,-1,3)
51.52 1.7739 14.8 (2,1,-3)
51.52 1.7739 19.7 (2,1,0)
51.52 1.7739 4.9 (2,-1,1)
52.27 1.7501 30.6 (1,0,-4)
54.81 1.6748 5.8 (0,0,4)
58.91 1.5677 11.5 (2,1,-4)
58.91 1.5677 28.7 (2,1,1)
58.91 1.5677 5.7 (2,-1,2)
60.60 1.5281 11.1 (2,2,-2)
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能量属性

形成能/原子
-0.63727
eV/atom
能量/原子
-16.29245
eV/atom
凸包距离
0.0000
eV/atom
未修正能量
-16.2924
eV/atom
体积/原子
20.86
ų
c/a 比
1.7036

电子属性

金属性
金属
带隙
0
eV
直接带隙
否
导带底 CBM
N/A
eV

磁性属性

磁性
是
总磁矩
0.0000
μB
磁有序
Unknown
磁性位点数
0
磁化强度/体积
0.000000
μB/ų

弹性属性

体积模量 KVRH
81.814
GPa
剪切模量 GVRH
25.855
GPa
杨氏模量 E
70.173
GPa
泊松比 ν
0.357
Pugh 比 K/G
3.164
维氏硬度估算
0.484
GPa
韧性
Brittle
各向异性
1.556
拉梅 λ
64.577
GPa

特征分析

组成概览

元素组成(原子分数)
组成信息
主元 / 基质元素
Si · 0.667
元素家族
N/A
溶质分数
0.333
间隙分数
0.667

传统材料特征

ROM 混合特征雷达
评级与分类
评级 Tier
A
评分
0.703
家族
Binary Alloy
基质元素
Si · 0.667

弹性数据特征

弹性模量对比 (GPa)
弹性特征
弹性各向异性 AU
1.5560
均匀泊松比 ν
0.3570
Debye 温度
268.3
K
声速
2,481.3
m/s
均匀度
0.3570

关联任务

引用参考

Materials Project 官方页面
https://materialsproject.org/materials/mp-884
参考引用

The crystal structure and related material properties of NdSi2 were obtained from the Materials Project database (MP-ID: mp-884, database version v2026.04.13).

文献引用

Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

晶体结构 3D 渲染

加载 3D 结构...

样式: Ball & Stick
原始 CIF 数据
# generated using pymatgen
data_NdSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.32215095
_cell_length_b   4.32215161
_cell_length_c   7.36341717
_cell_angle_alpha   107.06691519
_cell_angle_beta   107.06691525
_cell_angle_gamma   89.99997967
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NdSi2
_chemical_formula_sum   'Nd2 Si4'
_cell_volume   125.14787426
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Nd  Nd0  1  0.87500000  0.62500000  0.25000000  1.0
  Nd  Nd1  1  0.12500000  0.37500000  0.75000000  1.0
  Si  Si2  1  0.71154836  0.96154836  0.92309573  1.0
  Si  Si3  1  0.46154836  0.21154836  0.42309573  1.0
  Si  Si4  1  0.53845164  0.78845164  0.57690427  1.0
  Si  Si5  1  0.28845164  0.03845164  0.07690427  1.0
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