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HoCo2GeC

高熵材料 HEA

MP-ID: mp-3253389 · 空间群: Cmcm (#63)

基础信息

化学式
HoCo2GeC
MP-ID
mp-3253389
元素数
4
位点数
10
密度
9.1808
g/cm³
体积
132.92
ų
晶胞参数 a
5.5904
Å
晶胞参数 b
5.5904
Å
晶胞参数 c
6.7694
Å
α 角
90.00
°
β 角
90.00
°
γ 角
141.08
°
空间群
Cmcm
点群
mmm
晶体系统
Orthorhombic
布拉维格子
Orthorhombic C
稳定性
是
堆积分数
0.5240

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
21.37 4.1589 5.1 (1,-1,1)
25.36 3.5124 9.4 (0,1,0)
25.36 3.5124 9.4 (1,0,0)
26.33 3.3847 20.1 (0,0,2)
31.41 2.8481 12.0 (1,-1,2)
34.02 2.6355 1.6 (2,-2,0)
35.11 2.5562 18.6 (1,-2,0)
35.11 2.5562 18.6 (2,-1,0)
36.59 2.4559 50.9 (2,-2,1)
36.88 2.4372 100.0 (1,0,2)
37.61 2.3914 78.8 (2,-1,1)
43.52 2.0794 17.1 (2,-2,2)
43.63 2.0744 18.2 (1,-1,3)
47.92 1.8985 12.2 (1,0,3)
48.90 1.8626 29.9 (1,1,0)
51.61 1.7710 1.5 (2,-3,1)
51.61 1.7710 1.5 (3,-2,1)
53.46 1.7140 4.1 (2,-2,3)
53.91 1.7006 4.2 (3,-3,1)
54.20 1.6924 11.5 (0,0,4)
54.22 1.6917 23.1 (2,-1,3)
56.38 1.6319 5.6 (1,1,2)
57.10 1.6131 2.0 (2,-3,2)
57.10 1.6131 2.0 (3,-2,2)
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能量属性

形成能/原子
-0.46504
eV/atom
能量/原子
-17.09884
eV/atom
凸包距离
0.0000
eV/atom
未修正能量
-17.0988
eV/atom
体积/原子
13.29
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
否
总磁矩
0.0000
μB
磁有序
NM
磁性位点数
0
磁化强度/体积
0.000000
μB/ų

弹性属性

弹性数据暂不开放

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
Co · 0.400
元素家族
3d-TM
溶质分数
0.600
间隙分数
0.200

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
1.3322
高熵判据(>1.0 视为高熵)
混合熵 ΔS
11.0757
J/mol·K
Ω 参数
1.4950
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
24.716%
δr < 6.6% 利于单相固溶
电负性差 Δχ
0.4204
越小混合越稳定
价电子浓度 VEC
7.400
价电子浓度,影响相稳定性
混合焓 ΔH_mix
-15.268
kJ/mol 且负值为放热混合
熵归一化
0.9610
固溶体倾向
0
相趋势
AM

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-3253389
参考引用

The crystal structure and related material properties of HoCo2GeC were obtained from the Materials Project database (MP-ID: mp-3253389, 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_HoCo2GeC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.59037466
_cell_length_b   5.59037535
_cell_length_c   6.76939111
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   141.07578256
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HoCo2GeC
_chemical_formula_sum   'Ho2 Co4 Ge2 C2'
_cell_volume   132.92081069
_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
  Ho  Ho0  1  0.54956014  0.45043986  0.25000000  1.0
  Ho  Ho1  1  0.45043986  0.54956014  0.75000000  1.0
  Co  Co2  1  0.83932449  0.16067551  0.05609363  1.0
  Co  Co3  1  0.16067551  0.83932449  0.94390637  1.0
  Co  Co4  1  0.16067551  0.83932449  0.55609363  1.0
  Co  Co5  1  0.83932449  0.16067551  0.44390637  1.0
  Ge  Ge6  1  0.27049931  0.72950069  0.25000000  1.0
  Ge  Ge7  1  0.72950069  0.27049931  0.75000000  1.0
  C  C8  1  0.00000000  0.00000000  0.00000000  1.0
  C  C9  1  0.00000000  0.00000000  0.50000000  1.0
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