基础信息
化学式
CaNd19Pb16
MP-ID
mp-3294387
元素数
3
位点数
36
密度
8.7333
g/cm³
体积
1,159.06
ų
晶胞参数 a
8.4113
Å
晶胞参数 b
8.5211
Å
晶胞参数 c
16.1714
Å
α 角
90.00
°
β 角
90.00
°
γ 角
89.78
°
空间群
Pm
点群
m
晶体系统
Monoclinic
Bravais 格子
mP
稳定性
Yes
堆积分数
-
X 射线衍射
衍射图谱
横轴为 2θ (°),纵轴为相对强度,Cu Kα , λ=1.5418 Å
衍射峰(Top 24)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 5.46 | 16.1714 | 2.8 | (0,0,1) |
| 10.94 | 8.0857 | 4.2 | (0,0,2) |
| 11.74 | 7.5386 | 1.6 | (0,1,1) |
| 11.86 | 7.4622 | 1.3 | (1,0,1) |
| 15.76 | 5.6235 | 1.1 | (1,1,1) |
| 15.81 | 5.6042 | 1.2 | (1,-1,1) |
| 18.42 | 4.8172 | 3.1 | (1,1,2) |
| 18.46 | 4.8051 | 3.7 | (1,-1,2) |
| 20.85 | 4.2605 | 4.6 | (0,2,0) |
| 21.12 | 4.2056 | 6.3 | (2,0,0) |
| 21.84 | 4.0702 | 1.3 | (2,0,1) |
| 21.99 | 4.0429 | 7.2 | (0,0,4) |
| 22.17 | 4.0092 | 20.3 | (1,1,3) |
| 22.21 | 4.0022 | 20.8 | (1,-1,3) |
| 23.37 | 3.8068 | 2.3 | (1,2,0) |
| 23.44 | 3.7948 | 1.5 | (1,-2,0) |
| 23.60 | 3.7693 | 11.4 | (0,2,2) |
| 23.85 | 3.7311 | 9.5 | (2,0,2) |
| 25.87 | 3.4442 | 1.1 | (1,2,2) |
| 25.94 | 3.4353 | 1.1 | (1,-2,2) |
| 26.04 | 3.4222 | 18.9 | (2,1,2) |
| 26.11 | 3.4135 | 24.1 | (2,-1,2) |
| 28.71 | 3.1095 | 100.0 | (1,2,3) |
| 28.77 | 3.1030 | 90.1 | (1,-2,3) |
能量属性
形成能/原子
-0.78132
eV/atom
能量/原子
-41.51861
eV/atom
凸包距离
0.0000
eV/atom
未修正能量
-41.5186
eV/atom
体积/原子
32.20
ų
c/a 比
1.9226
电子属性
金属性
金属
带隙
0
eV
直接带隙
No
CBM
N/A
eV
磁性属性
磁性
Yes
总磁矩
0.7779
μB
磁有序
FM
磁性位点数
2
磁化强度/体积
0.000670
μB/ų
弹性属性
弹性数据暂不开放
特征分析
元素组成(原子分数)
组成信息
主元 / 基质元素
Nd · 0.528
元素家族
Lanthanide
溶质分数
0.472
间隙分数
0.000
综合指标雷达(归一化)
元素类别占比
混合熵 ΔS/R
0.7972
高熵判据(>1.0 视为高熵)
混合熵 ΔS
6.6283
J/mol·K
Ω 参数
0.2132
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
3.105%
δr < 6.6% 利于单相固溶
电负性差 Δχ
0.5952
越小混合越稳定
VEC
3.417
价电子浓度,影响相稳定性
混合焓 ΔH_mix
-30.537
kJ/mol 且负值为放热混合
熵归一化
0.7257
固溶体倾向
0
相趋势
IM
关联任务
关联的计算任务 ID(1 个)
引用参考
Materials Project 官方页面
https://materialsproject.org/materials/mp-3294387
参考引用
The crystal structure and related material properties of CaNd19Pb16 were obtained from the Materials Project database (MP-ID: mp-3294387, 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
晶体结构 3D 渲染
加载 3D 结构...
样式: Ball & Stick
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原始 CIF 数据
# generated using pymatgen
data_CaNd19Pb16
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 8.41132883
_cell_length_b 8.52111082
_cell_length_c 16.17138401
_cell_angle_alpha 90.00000000
_cell_angle_beta 90.00000000
_cell_angle_gamma 89.77586302
_symmetry_Int_Tables_number 1
_chemical_formula_structural CaNd19Pb16
_chemical_formula_sum 'Ca1 Nd19 Pb16'
_cell_volume 1159.05672622
_cell_formula_units_Z 1
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
Ca Ca0 1 0.78966271 0.49486011 0.75000000 1.0
Nd Nd1 1 0.62364586 0.15826243 0.61765515 1.0
Nd Nd2 1 0.11872389 0.34181948 0.88208815 1.0
Nd Nd3 1 0.37623938 0.84381835 0.11843518 1.0
Nd Nd4 1 0.87618660 0.65850366 0.38145924 1.0
Nd Nd5 1 0.37623938 0.84381835 0.38156482 1.0
Nd Nd6 1 0.87618660 0.65850366 0.11854076 1.0
Nd Nd7 1 0.62364586 0.15826243 0.88234485 1.0
Nd Nd8 1 0.11872389 0.34181948 0.61791185 1.0
Nd Nd9 1 0.47288285 0.67683573 0.59999473 1.0
Nd Nd10 1 0.97188199 0.81729322 0.90056329 1.0
Nd Nd11 1 0.53103942 0.32576896 0.10160405 1.0
Nd Nd12 1 0.03013463 0.17835941 0.39873833 1.0
Nd Nd13 1 0.53103942 0.32576896 0.39839595 1.0
Nd Nd14 1 0.03013463 0.17835941 0.10126167 1.0
Nd Nd15 1 0.47288285 0.67683573 0.90000527 1.0
Nd Nd16 1 0.97188199 0.81729322 0.59943671 1.0
Nd Nd17 1 0.29276521 0.00184080 0.75000000 1.0
Nd Nd18 1 0.20793797 0.50382350 0.25000000 1.0
Nd Nd19 1 0.70759010 0.99869934 0.25000000 1.0
Pb Pb20 1 0.71965766 0.96700426 0.45608520 1.0
Pb Pb21 1 0.21980873 0.53538782 0.04296703 1.0
Pb Pb22 1 0.27959398 0.03262769 0.95528812 1.0
Pb Pb23 1 0.77989680 0.46409405 0.54204899 1.0
Pb Pb24 1 0.27959398 0.03262769 0.54471188 1.0
Pb Pb25 1 0.77989680 0.46409405 0.95795101 1.0
Pb Pb26 1 0.71965766 0.96700426 0.04391480 1.0
Pb Pb27 1 0.21980873 0.53538782 0.45703297 1.0
Pb Pb28 1 0.42374275 0.37692258 0.75000000 1.0
Pb Pb29 1 0.92566427 0.11835708 0.75000000 1.0
Pb Pb30 1 0.57244704 0.62713228 0.25000000 1.0
Pb Pb31 1 0.07196602 0.87483101 0.25000000 1.0
Pb Pb32 1 0.66032304 0.85498842 0.75000000 1.0
Pb Pb33 1 0.16702853 0.64540449 0.75000000 1.0
Pb Pb34 1 0.34071199 0.15040143 0.25000000 1.0
Pb Pb35 1 0.84077579 0.35318382 0.25000000 1.0
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