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La4MgRu

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-605878 · Space group: F-43m (#216)

Basic Information

Formula
La4MgRu
MP-ID
mp-605878
Elements
3
Sites
24
Density
6.1581
g/cm³
Volume
734.52
ų
Cell a
10.1275
Å
Cell b
10.1275
Å
Cell c
10.1276
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
F-43m
Point Group
-43m
Crystal System
Cubic
Bravais Lattice
Cubic F
Stability
Yes
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
10.70 8.2692 50.0 (0,0,1)
10.70 8.2692 100.0 (1,0,0)
10.70 8.2691 50.0 (1,1,1)
12.36 7.1613 13.6 (1,0,1)
12.36 7.1613 27.3 (1,1,0)
17.51 5.0638 4.2 (1,0,-1)
17.51 5.0638 2.1 (1,-1,0)
17.51 5.0638 2.1 (1,1,2)
17.51 5.0638 2.1 (2,1,1)
17.51 5.0638 2.1 (1,2,1)
20.57 4.3185 2.1 (1,1,-1)
20.57 4.3185 2.1 (1,-1,1)
20.57 4.3185 2.1 (1,-1,-1)
20.57 4.3184 4.2 (1,0,2)
20.57 4.3184 6.3 (2,1,0)
20.57 4.3184 2.1 (0,2,1)
20.57 4.3184 2.1 (2,1,2)
20.57 4.3184 4.2 (2,2,1)
24.87 3.5807 5.6 (2,0,2)
24.87 3.5807 5.6 (2,2,0)
24.87 3.5807 5.6 (0,2,2)
27.14 3.2859 51.4 (1,0,-2)
27.14 3.2859 51.4 (2,0,-1)
27.14 3.2858 51.4 (2,-1,0)
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Energy Properties

Formation Energy/atom
-0.21526
eV/atom
Energy/atom
-5.32341
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-25.0011
eV/atom
Volume/atom
30.61
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
0.0001
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
La · 0.667
Element Family
Lanthanide
Solute Fraction
0.333
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8676
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.2129
J/mol·K
Ω Parameter
0.4253
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
13.318%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4017
smaller = more stable mixing
VEC
3.667
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-23.465
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7897
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.626
Family
La-rich Multi-Component
Matrix Element
La · 0.667

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-605878
Reference Citation

The crystal structure and related material properties of La4MgRu were obtained from the Materials Project database (MP-ID: mp-605878, 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_La4MgRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.12753796
_cell_length_b   10.12753446
_cell_length_c   10.12754829
_cell_angle_alpha   60.00081812
_cell_angle_beta   60.00078973
_cell_angle_gamma   60.00077486
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La4MgRu
_chemical_formula_sum   'La16 Mg4 Ru4'
_cell_volume   734.52190999
_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
  La  La0  1  0.80939349  0.19060373  0.19060203  1.0
  La  La1  1  0.19060084  0.19061058  0.80939165  1.0
  La  La2  1  0.80939655  0.80939831  0.19059885  1.0
  La  La3  1  0.19059639  0.80939586  0.80939643  1.0
  La  La4  1  0.59370677  0.59370640  0.21887727  1.0
  La  La5  1  0.43662942  0.06337375  0.06337205  1.0
  La  La6  1  0.06337372  0.43662910  0.06337146  1.0
  La  La7  1  0.43662644  0.06337535  0.43662597  1.0
  La  La8  1  0.21888168  0.59370509  0.59370639  1.0
  La  La9  1  0.06337398  0.43662734  0.43662694  1.0
  La  La10  1  0.59370678  0.21887610  0.59370856  1.0
  La  La11  1  0.59370856  0.59370758  0.59370960  1.0
  La  La12  1  0.19060125  0.80939158  0.19061006  1.0
  La  La13  1  0.80939594  0.19059960  0.80939739  1.0
  La  La14  1  0.06337254  0.06337215  0.43662875  1.0
  La  La15  1  0.43662570  0.43662640  0.06337473  1.0
  Mg  Mg16  1  0.82760275  0.82760046  0.82760079  1.0
  Mg  Mg17  1  0.51720676  0.82759511  0.82759519  1.0
  Mg  Mg18  1  0.82759438  0.51720923  0.82759355  1.0
  Mg  Mg19  1  0.82759514  0.82759403  0.51720830  1.0
  Ru  Ru20  1  0.84109232  0.38630622  0.38630613  1.0
  Ru  Ru21  1  0.38630442  0.38630167  0.38630266  1.0
  Ru  Ru22  1  0.38631068  0.84108891  0.38630520  1.0
  Ru  Ru23  1  0.38630750  0.38630545  0.84109205  1.0
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