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EuMgNi

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1103210 · Space group: P2_13 (#198)

Basic Information

Formula
EuMgNi
MP-ID
mp-1103210
Elements
3
Sites
12
Density
4.9558
g/cm³
Volume
314.92
ų
Cell a
6.8035
Å
Cell b
6.8035
Å
Cell c
6.8035
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P2_13
Point Group
23
Crystal System
Cubic
Bravais Lattice
Cubic 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
18.44 4.8108 13.0 (1,1,0)
22.64 3.9280 77.8 (1,1,1)
26.20 3.4018 8.9 (2,0,0)
29.35 3.0426 100.0 (2,1,0)
32.23 2.7775 56.6 (2,1,1)
37.39 2.4054 34.3 (2,2,0)
39.75 2.2678 32.6 (2,2,1)
41.99 2.1515 40.7 (3,1,0)
44.15 2.0513 22.5 (3,1,1)
46.22 1.9640 1.7 (2,2,2)
48.23 1.8870 9.7 (3,2,0)
50.17 1.8183 46.1 (3,2,1)
55.71 1.6501 36.2 (3,2,2)
57.47 1.6036 4.3 (4,1,1)
59.20 1.5608 4.0 (3,3,1)
60.90 1.5213 3.1 (4,2,0)
62.57 1.4846 18.0 (4,2,1)
64.21 1.4505 4.6 (3,3,2)
67.44 1.3888 8.4 (4,2,2)
69.02 1.3607 12.8 (4,3,0)
70.59 1.3343 31.4 (4,3,1)
72.14 1.3093 11.6 (3,3,3)
75.21 1.2634 14.0 (5,2,0)
76.73 1.2421 9.6 (5,2,1)
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Energy Properties

Formation Energy/atom
-0.01856
eV/atom
Energy/atom
-5.91813
eV/atom
Energy above Hull
0.1082
eV/atom
Uncorrected Energy
-5.9181
eV/atom
Volume/atom
26.24
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
28.0662
μB
Mag. Ordering
FiM
Mag. Sites
8
Magnetization/Volume
0.089120
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

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

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0986
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.1339
J/mol·K
Ω Parameter
1.2844
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
16.016%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3120
smaller = more stable mixing
VEC
6.333
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-8.889
kJ/mol; negative = exothermic mixing
Entropy Norm
1.0000
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.357
Family
Eu-rich Multi-Component
Matrix Element
Eu · 0.333

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1103210
Reference Citation

The crystal structure and related material properties of EuMgNi were obtained from the Materials Project database (MP-ID: mp-1103210, 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_EuMgNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.80349000
_cell_length_b   6.80349000
_cell_length_c   6.80349000
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   EuMgNi
_chemical_formula_sum   'Eu4 Mg4 Ni4'
_cell_volume   314.91638132
_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
  Eu  Eu0  1  0.17940800  0.67940800  0.82059200  1.0
  Eu  Eu1  1  0.67940800  0.82059200  0.17940800  1.0
  Eu  Eu2  1  0.82059200  0.17940800  0.67940800  1.0
  Eu  Eu3  1  0.32059200  0.32059200  0.32059200  1.0
  Mg  Mg4  1  0.84573100  0.34573100  0.15426900  1.0
  Mg  Mg5  1  0.34573100  0.15426900  0.84573100  1.0
  Mg  Mg6  1  0.15426900  0.84573100  0.34573100  1.0
  Mg  Mg7  1  0.65426900  0.65426900  0.65426900  1.0
  Ni  Ni8  1  0.45464900  0.95464900  0.54535100  1.0
  Ni  Ni9  1  0.95464900  0.54535100  0.45464900  1.0
  Ni  Ni10  1  0.54535100  0.45464900  0.95464900  1.0
  Ni  Ni11  1  0.04535100  0.04535100  0.04535100  1.0
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