KEu2CuS6
高熵材料 HEA空间群: Fddd (#70)
基础信息
化学式
KEu2CuS6
MP-ID
mp-680171
元素数
4
位点数
40
密度
4.1745
g/cm³
体积
953.03
ų
晶胞参数 a
21.9950
Å
晶胞参数 b
21.7157
Å
晶胞参数 c
6.8073
Å
α 角
83.37
°
β 角
78.73
°
γ 角
17.90
°
空间群
Fddd
点群
mmm
晶体系统
Orthorhombic
Bravais 格子
oF
稳定性
No
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 |
|---|---|---|---|
| 8.29 | 10.6596 | 100.0 | (2,2,0) |
| 13.64 | 6.4904 | 2.2 | (1,0,0) |
| 14.86 | 5.9614 | 5.8 | (1,1,-1) |
| 16.63 | 5.3298 | 2.6 | (4,4,0) |
| 16.91 | 5.2442 | 5.4 | (0,1,-1) |
| 17.04 | 5.2030 | 1.2 | (2,2,-1) |
| 20.63 | 4.3048 | 32.8 | (2,3,-1) |
| 23.15 | 3.8421 | 2.5 | (4,4,-1) |
| 24.93 | 3.5715 | 11.9 | (3,2,-1) |
| 25.06 | 3.5532 | 7.8 | (6,6,0) |
| 26.62 | 3.3489 | 1.9 | (4,5,-1) |
| 27.16 | 3.2835 | 13.8 | (1,1,2) |
| 27.71 | 3.2197 | 1.6 | (0,2,-1) |
| 28.44 | 3.1380 | 30.7 | (1,1,-2) |
| 30.12 | 2.9670 | 48.2 | (5,4,-1) |
| 30.46 | 2.9343 | 1.7 | (6,6,-1) |
| 32.02 | 2.7955 | 4.9 | (3,3,-2) |
| 33.04 | 2.7110 | 2.2 | (3,4,-2) |
| 33.11 | 2.7052 | 13.6 | (2,0,2) |
| 33.63 | 2.6649 | 6.6 | (8,8,0) |
| 33.77 | 2.6540 | 1.6 | (6,7,-1) |
| 34.20 | 2.6221 | 14.6 | (0,2,-2) |
| 37.28 | 2.4123 | 1.3 | (2,4,-2) |
| 37.29 | 2.4115 | 30.3 | (5,5,-2) |
能量属性
形成能/原子
-1.38692
eV/atom
能量/原子
-6.45004
eV/atom
凸包距离
0.0455
eV/atom
未修正能量
-6.1482
eV/atom
体积/原子
23.83
ų
c/a 比
0.3095
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
48.0000
μB
磁有序
FiM
磁性位点数
12
磁化强度/体积
0.050370
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
S · 0.600
元素家族
Metalloid-Nonmetal
溶质分数
0.400
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
1.0889
高熵判据(>1.0 视为高熵)
混合熵 ΔS
9.0531
J/mol·K
Ω 参数
1.0670
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
32.106%
δr < 6.6% 利于单相固溶
电负性差 Δχ
0.6830
越小混合越稳定
VEC
6.200
价电子浓度,影响相稳定性
混合焓 ΔH_mix
-5.280
kJ/mol 且负值为放热混合
熵归一化
0.7855
固溶体倾向
0
相趋势
IM
关联任务
引用参考
Materials Project 官方页面
https://materialsproject.org/materials/mp-680171
参考引用
The crystal structure and related material properties of KEu2CuS6 were obtained from the Materials Project database (MP-ID: mp-680171, 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_KEu2CuS6
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 21.99498357
_cell_length_b 21.71574215
_cell_length_c 6.80730655
_cell_angle_alpha 83.37029800
_cell_angle_beta 78.72564323
_cell_angle_gamma 17.90405877
_symmetry_Int_Tables_number 1
_chemical_formula_structural KEu2CuS6
_chemical_formula_sum 'K4 Eu8 Cu4 S24'
_cell_volume 953.03078633
_cell_formula_units_Z 4
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
K K0 1 0.99897400 0.50102600 0.99897400 1.0
K K1 1 0.50102600 0.99897400 0.50102600 1.0
K K2 1 0.74897400 0.25102600 0.74897400 1.0
K K3 1 0.25102600 0.74897400 0.25102600 1.0
Eu Eu4 1 0.34065600 0.34065600 0.15934400 1.0
Eu Eu5 1 0.90934400 0.90934400 0.09065600 1.0
Eu Eu6 1 0.59320700 0.59320700 0.40679300 1.0
Eu Eu7 1 0.84320700 0.84320700 0.65679300 1.0
Eu Eu8 1 0.09065600 0.09065600 0.90934400 1.0
Eu Eu9 1 0.15934400 0.15934400 0.34065600 1.0
Eu Eu10 1 0.40679300 0.40679300 0.59320700 1.0
Eu Eu11 1 0.65679300 0.65679300 0.84320700 1.0
Cu Cu12 1 0.83434600 0.83434600 0.16565400 1.0
Cu Cu13 1 0.08434600 0.08434600 0.41565400 1.0
Cu Cu14 1 0.41565400 0.41565400 0.08434600 1.0
Cu Cu15 1 0.16565400 0.16565400 0.83434600 1.0
S S16 1 0.37588000 0.90419800 0.62718900 1.0
S S17 1 0.64092600 0.94929300 0.05253600 1.0
S S18 1 0.90419800 0.37588000 0.09273300 1.0
S S19 1 0.89275600 0.19746400 0.30070700 1.0
S S20 1 0.05253600 0.35724400 0.64092600 1.0
S S21 1 0.11100800 0.78543200 0.70412400 1.0
S S22 1 0.70412400 0.39943500 0.11100800 1.0
S S23 1 0.60907400 0.30070700 0.19746400 1.0
S S24 1 0.35724400 0.05253600 0.94929300 1.0
S S25 1 0.62281100 0.15726700 0.87412000 1.0
S S26 1 0.46456800 0.13899200 0.85056500 1.0
S S27 1 0.54587600 0.85056500 0.13899200 1.0
S S28 1 0.09273300 0.62718900 0.90419800 1.0
S S29 1 0.39943500 0.70412400 0.78543200 1.0
S S30 1 0.78543200 0.11100800 0.39943500 1.0
S S31 1 0.87412000 0.34580200 0.62281100 1.0
S S32 1 0.62718900 0.09273300 0.37588000 1.0
S S33 1 0.94929300 0.64092600 0.35724400 1.0
S S34 1 0.34580200 0.87412000 0.15726700 1.0
S S35 1 0.13899200 0.46456800 0.54587600 1.0
S S36 1 0.19746400 0.89275600 0.60907400 1.0
S S37 1 0.30070700 0.60907400 0.89275600 1.0
S S38 1 0.85056500 0.54587600 0.46456800 1.0
S S39 1 0.15726700 0.62281100 0.34580200 1.0
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