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CsRbMg6

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1098082 · Space group: Pm (#6)

Basic Information

Formula
CsRbMg6
MP-ID
mp-1098082
Elements
3
Sites
8
Density
2.0115
g/cm³
Volume
300.66
ų
Cell a
5.0427
Å
Cell b
7.5399
Å
Cell c
8.6897
Å
α Angle
65.50
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
Pm
Point Group
m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic P
Stability
No
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
11.19 7.9075 41.7 (0,0,1)
12.90 6.8612 5.4 (0,1,0)
13.12 6.7497 5.2 (0,1,1)
17.59 5.0427 39.8 (1,0,0)
20.35 4.3635 2.1 (0,1,-1)
20.76 4.2779 2.0 (0,1,2)
20.89 4.2518 100.0 (1,0,1)
21.87 4.0633 3.4 (1,1,0)
22.00 4.0398 3.3 (1,1,1)
22.49 3.9537 47.5 (0,0,2)
23.60 3.7691 20.1 (0,2,1)
25.97 3.4306 38.7 (0,2,0)
26.41 3.3749 38.1 (0,2,2)
27.02 3.2997 2.1 (1,1,-1)
27.34 3.2622 2.0 (1,1,2)
28.69 3.1114 81.0 (1,0,2)
29.59 3.0190 22.8 (1,2,1)
31.54 2.8365 65.4 (1,2,0)
31.91 2.8047 62.5 (1,2,2)
32.47 2.7573 17.0 (0,2,-1)
33.18 2.6998 15.5 (0,2,3)
34.01 2.6358 18.4 (0,0,3)
35.35 2.5391 1.0 (1,1,-2)
35.61 2.5214 35.1 (2,0,0)
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Energy Properties

Formation Energy/atom
0.29506
eV/atom
Energy/atom
-1.16385
eV/atom
Energy above Hull
0.2951
eV/atom
Uncorrected Energy
-1.1639
eV/atom
Volume/atom
37.58
ų
c/a Ratio
-

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0142
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000050
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Mg · 0.750
Element Family
Alkali-AlkEarth
Solute Fraction
0.250
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.7356
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
6.1160
J/mol·K
Ω Parameter
0.0000
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
21.114%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2188
smaller = more stable mixing
VEC
1.750
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
0.000
kJ/mol; negative = exothermic mixing
Entropy Norm
0.6696
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.552
Family
Mg-based Alloy
Matrix Element
Mg · 0.750

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1098082
Reference Citation

The crystal structure and related material properties of CsRbMg6 were obtained from the Materials Project database (MP-ID: mp-1098082, database version v2026.04.13).

Literature Citation

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.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_CsRbMg6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.04274200
_cell_length_b   7.53991900
_cell_length_c   8.68970165
_cell_angle_alpha   65.50265602
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CsRbMg6
_chemical_formula_sum   'Cs1 Rb1 Mg6'
_cell_volume   300.65634822
_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  0.00000000  0.81956100  0.86314000  1.0
  Rb  Rb1  1  0.00000000  0.32466900  0.85226100  1.0
  Mg  Mg2  1  0.00000000  0.32814700  0.34215000  1.0
  Mg  Mg3  1  0.00000000  0.83066900  0.34222800  1.0
  Mg  Mg4  1  0.50000000  0.22354100  0.55336800  1.0
  Mg  Mg5  1  0.50000000  0.72409600  0.55293600  1.0
  Mg  Mg6  1  0.50000000  0.12626100  0.24402700  1.0
  Mg  Mg7  1  0.50000000  0.62305500  0.24989100  1.0
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