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RbLiMg6O7

高熵材料 HEA

MP-ID: mp-1031091 · 空间群: P4mm (#99)

基础信息

化学式
RbLiMg6O7
MP-ID
mp-1031091
元素数
4
位点数
15
密度
2.9521
g/cm³
体积
197.01
ų
晶胞参数 a
4.1558
Å
晶胞参数 b
4.1558
Å
晶胞参数 c
11.4073
Å
α 角
90.00
°
β 角
90.00
°
γ 角
90.00
°
空间群
P4mm
点群
4mm
晶体系统
Tetragonal
布拉维格子
Tetragonal P
稳定性
否
堆积分数
0.6800

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
7.75 11.4073 5.1 (0,0,1)
15.54 5.7037 18.6 (0,0,2)
21.38 4.1558 17.5 (1,0,0)
22.77 3.9047 62.5 (1,0,1)
23.39 3.8024 24.7 (0,0,3)
26.54 3.3588 48.8 (1,0,2)
30.42 2.9386 1.1 (1,1,0)
31.37 2.8518 10.7 (0,0,4)
31.44 2.8457 53.4 (1,1,1)
31.90 2.8053 69.3 (1,0,3)
34.33 2.6123 45.7 (1,1,2)
38.28 2.3514 20.1 (1,0,4)
38.73 2.3252 3.8 (1,1,3)
39.50 2.2815 22.4 (0,0,5)
43.56 2.0779 100.0 (2,0,0)
44.26 2.0465 13.5 (1,1,4)
45.35 1.9999 15.6 (1,0,5)
46.52 1.9524 3.6 (2,0,2)
47.84 1.9012 15.5 (0,0,6)
49.01 1.8585 3.4 (2,1,0)
49.70 1.8343 15.1 (2,1,1)
50.02 1.8234 12.6 (2,0,3)
50.66 1.8021 20.3 (1,1,5)
51.73 1.7671 14.3 (2,1,2)
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能量属性

形成能/原子
-2.32339
eV/atom
能量/原子
-5.47725
eV/atom
凸包距离
0.4277
eV/atom
未修正能量
-5.1567
eV/atom
体积/原子
13.13
ų
c/a 比
2.7449

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
0.1247
μB
磁有序
NM
磁性位点数
0
磁化强度/体积
0.000630
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
O · 0.467
元素家族
Metalloid-Nonmetal
溶质分数
0.533
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
1.0833
高熵判据(>1.0 视为高熵)
混合熵 ΔS
9.0062
J/mol·K
Ω 参数
18.8223
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
48.507%
δr < 6.6% 利于单相固溶
电负性差 Δχ
1.1217
越小混合越稳定
价电子浓度 VEC
2.800
价电子浓度,影响相稳定性
混合焓 ΔH_mix
0.213
kJ/mol 且负值为放热混合
熵归一化
0.7814
固溶体倾向
0
相趋势
IM

关联任务

关联的计算任务 ID(2 个)

引用参考

Materials Project 官方页面
https://materialsproject.org/materials/mp-1031091
参考引用

The crystal structure and related material properties of RbLiMg6O7 were obtained from the Materials Project database (MP-ID: mp-1031091, 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_RbLiMg6O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.15575300
_cell_length_b   4.15575300
_cell_length_c   11.40730100
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RbLiMg6O7
_chemical_formula_sum   'Rb1 Li1 Mg6 O7'
_cell_volume   197.00731650
_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
  Rb  Rb0  1  0.00000000  0.00000000  0.54612400  1.0
  Li  Li1  1  0.00000000  0.00000000  0.03034500  1.0
  Mg  Mg2  1  0.50000000  0.50000000  0.00705200  1.0
  Mg  Mg3  1  0.50000000  0.50000000  0.40235300  1.0
  Mg  Mg4  1  0.00000000  0.50000000  0.21159600  1.0
  Mg  Mg5  1  0.00000000  0.50000000  0.83795500  1.0
  Mg  Mg6  1  0.50000000  0.00000000  0.21159600  1.0
  Mg  Mg7  1  0.50000000  0.00000000  0.83795500  1.0
  O  O8  1  0.00000000  0.00000000  0.20081700  1.0
  O  O9  1  0.00000000  0.00000000  0.80486700  1.0
  O  O10  1  0.50000000  0.50000000  0.82827700  1.0
  O  O11  1  0.00000000  0.50000000  0.02617200  1.0
  O  O12  1  0.00000000  0.50000000  0.38935900  1.0
  O  O13  1  0.50000000  0.00000000  0.02617200  1.0
  O  O14  1  0.50000000  0.00000000  0.38935900  1.0
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