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Eu2ZnGe3

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1102922 · Space group: C2/m (#12)

Basic Information

Formula
Eu2ZnGe3
MP-ID
mp-1102922
Elements
3
Sites
12
Density
6.9487
g/cm³
Volume
280.67
ų
Cell a
6.1868
Å
Cell b
6.1868
Å
Cell c
8.6171
Å
α Angle
67.61
°
β Angle
67.61
°
γ Angle
86.37
°
Space Group
C2/m
Point Group
2/m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
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
24.23 3.6737 7.8 (0,0,2)
24.26 3.6686 15.9 (1,-1,1)
31.38 2.8503 21.1 (1,1,-1)
31.42 2.8470 100.0 (2,0,0)
31.42 2.8469 50.1 (1,1,3)
31.44 2.8453 41.6 (2,0,2)
39.97 2.2555 24.2 (2,2,2)
42.65 2.1200 54.1 (1,-1,3)
42.71 2.1170 26.9 (2,-2,0)
47.26 1.9232 7.6 (2,2,0)
47.32 1.9209 15.2 (3,1,3)
49.63 1.8369 1.2 (0,0,4)
49.71 1.8343 2.4 (2,-2,2)
53.87 1.7020 10.7 (1,1,-3)
53.92 1.7005 4.5 (1,1,5)
53.95 1.6995 9.1 (3,-1,-1)
53.98 1.6988 21.4 (3,-1,3)
59.84 1.5456 14.6 (3,1,-1)
59.91 1.5440 14.4 (3,1,5)
59.92 1.5436 14.4 (4,0,2)
65.58 1.4235 5.7 (4,0,0)
65.58 1.4235 2.9 (2,2,6)
67.28 1.3916 13.3 (4,2,2)
67.31 1.3910 6.6 (3,3,5)
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Energy Properties

Formation Energy/atom
-0.54960
eV/atom
Energy/atom
-6.50044
eV/atom
Energy above Hull
0.0156
eV/atom
Uncorrected Energy
-6.5004
eV/atom
Volume/atom
23.39
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
28.1411
μB
Mag. Ordering
FM
Mag. Sites
4
Magnetization/Volume
0.100260
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ge · 0.500
Element Family
PostTransition-Noble
Solute Fraction
0.500
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0114
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.4088
J/mol·K
Ω Parameter
1.7454
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
18.709%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3625
smaller = more stable mixing
VEC
6.333
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-5.239
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9206
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.454
Family
Ge-rich Multi-Component
Matrix Element
Ge · 0.500

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1102922
Reference Citation

The crystal structure and related material properties of Eu2ZnGe3 were obtained from the Materials Project database (MP-ID: mp-1102922, 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_Eu2ZnGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.18683094
_cell_length_b   6.18683094
_cell_length_c   8.61710857
_cell_angle_alpha   67.60767961
_cell_angle_beta   67.60767961
_cell_angle_gamma   86.37222651
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu2ZnGe3
_chemical_formula_sum   'Eu4 Zn2 Ge6'
_cell_volume   280.67488245
_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
  Eu  Eu0  1  0.75686600  0.75686600  0.00079500  1.0
  Eu  Eu1  1  0.24313400  0.24313400  0.99920500  1.0
  Eu  Eu2  1  0.75122600  0.24877400  0.50000000  1.0
  Eu  Eu3  1  0.24877400  0.75122600  0.50000000  1.0
  Zn  Zn4  1  0.30933200  0.30933200  0.33183900  1.0
  Zn  Zn5  1  0.69066800  0.69066800  0.66816100  1.0
  Ge  Ge6  1  0.19964200  0.19964200  0.66290000  1.0
  Ge  Ge7  1  0.80035900  0.80035900  0.33710000  1.0
  Ge  Ge8  1  0.79899300  0.30520300  0.83171500  1.0
  Ge  Ge9  1  0.69479700  0.20100700  0.16828500  1.0
  Ge  Ge10  1  0.20100700  0.69479700  0.16828500  1.0
  Ge  Ge11  1  0.30520300  0.79899300  0.83171500  1.0
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