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Cs2KTiF6

高熵材料 HEA 弹性数据 ELA

MP-ID: mp-6178 · 空间群: Fm-3m (#225)

基础信息

化学式
Cs2KTiF6
MP-ID
mp-6178
元素数
4
位点数
10
密度
3.9152
g/cm³
体积
197.97
ų
晶胞参数 a
6.5419
Å
晶胞参数 b
6.5419
Å
晶胞参数 c
6.5419
Å
α 角
60.00
°
β 角
60.00
°
γ 角
60.00
°
空间群
Fm-3m
点群
m-3m
晶体系统
Cubic
布拉维格子
Cubic F
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 18)
2θd (Å)Ihkl
16.60 5.3415 2.5 (1,1,1)
19.19 4.6258 17.4 (1,1,0)
27.26 3.2710 100.0 (2,1,1)
33.56 2.6707 30.4 (2,2,2)
38.94 2.3129 38.7 (2,2,0)
43.76 2.0687 11.5 (3,2,1)
48.19 1.8885 37.4 (3,3,2)
51.31 1.7805 1.3 (3,3,3)
56.25 1.6355 23.0 (4,2,2)
60.00 1.5419 6.6 (4,3,3)
63.61 1.4628 19.9 (4,3,1)
67.11 1.3947 9.3 (4,4,2)
70.52 1.3354 7.1 (4,4,4)
73.87 1.2830 2.3 (5,3,2)
77.15 1.2363 21.5 (5,4,3)
83.61 1.1565 3.2 (4,4,0)
86.81 1.1219 4.6 (5,5,4)
89.99 1.0903 10.3 (5,5,2)
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能量属性

形成能/原子
-3.30837
eV/atom
能量/原子
-5.54140
eV/atom
凸包距离
0.0000
eV/atom
未修正能量
-5.2642
eV/atom
体积/原子
19.80
ų
c/a 比
-

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
1.0001
μB
磁有序
FM
磁性位点数
1
磁化强度/体积
0.005050
μB/ų

弹性属性

体积模量 KVRH
41.268
GPa
剪切模量 GVRH
-23.193
GPa
杨氏模量 E
-
GPa
泊松比 ν
0.846
Pugh 比 K/G
-1.779
维氏硬度估算
-
GPa
韧性
Ductile
各向异性
2.031
拉梅 λ
56.730
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
F · 0.600
元素家族
Metalloid-Nonmetal
溶质分数
0.400
间隙分数
0.000

高熵合金特征

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
0.0000
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
75.027%
δr < 6.6% 利于单相固溶
电负性差 Δχ
1.4812
越小混合越稳定
价电子浓度 VEC
3.700
价电子浓度,影响相稳定性
混合焓 ΔH_mix
0.000
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

弹性数据特征

弹性模量对比 (GPa)
弹性特征
弹性各向异性 AU
2.0310
均匀泊松比 ν
0.8460
均匀度
0.8460

关联任务

引用参考

Materials Project 官方页面
https://materialsproject.org/materials/mp-6178
参考引用

The crystal structure and related material properties of Cs2KTiF6 were obtained from the Materials Project database (MP-ID: mp-6178, 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_Cs2KTiF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.54191152
_cell_length_b   6.54191152
_cell_length_c   6.54191152
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cs2KTiF6
_chemical_formula_sum   'Cs2 K1 Ti1 F6'
_cell_volume   197.96982568
_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
  Cs  Cs0  1  0.25000000  0.25000000  0.25000000  1.0
  Cs  Cs1  1  0.75000000  0.75000000  0.75000000  1.0
  K  K2  1  0.50000000  0.50000000  0.50000000  1.0
  Ti  Ti3  1  0.00000000  0.00000000  0.00000000  1.0
  F  F4  1  0.21647600  0.78352400  0.21647600  1.0
  F  F5  1  0.21647600  0.78352400  0.78352400  1.0
  F  F6  1  0.78352400  0.21647600  0.21647600  1.0
  F  F7  1  0.78352400  0.78352400  0.21647600  1.0
  F  F8  1  0.78352400  0.21647600  0.78352400  1.0
  F  F9  1  0.21647600  0.21647600  0.78352400  1.0
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