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Zn2PtRh

High-Entropy Materials HEA Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-977427 · Space group: Fm-3m (#225)

Basic Information

Formula
Zn2PtRh
MP-ID
mp-977427
Elements
3
Sites
4
Density
12.9963
g/cm³
Volume
54.79
ų
Cell a
4.2632
Å
Cell b
4.2632
Å
Cell c
4.2632
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
Fm-3m
Point Group
m-3m
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 10)
2θd (Å)Ihkl
25.59 3.4809 9.2 (1,1,1)
29.63 3.0145 16.0 (1,1,0)
42.40 2.1316 100.0 (2,1,1)
50.19 1.8178 4.9 (2,2,1)
52.58 1.7404 4.6 (2,2,2)
61.52 1.5073 16.3 (2,2,0)
67.75 1.3832 2.1 (3,2,2)
69.76 1.3481 6.2 (3,2,1)
77.57 1.2307 32.8 (3,3,2)
83.28 1.1603 1.7 (3,3,3)
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Energy Properties

Formation Energy/atom
-0.51252
eV/atom
Energy/atom
-4.50125
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-23.9298
eV/atom
Volume/atom
13.70
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
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
174.554
GPa
GVRH
67.060
GPa
Young's Modulus E
178.342
GPa
Poisson Ratio ν
0.330
Pugh Ratio K/G
2.603
Vickers Hardness Est.
4.646
GPa
Ductility
Brittle
Anisotropy
1.000
Lame λ
129.847
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Zn · 0.500
Element Family
3d-TM
Solute Fraction
0.500
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0397
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.6442
J/mol·K
Ω Parameter
0.5639
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
1.601%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3150
smaller = more stable mixing
VEC
10.750
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-21.705
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9464
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.674
Family
Zn-based Alloy
Matrix Element
Zn · 0.500

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.0000
Homogeneous Poisson ν
0.3300
Debye Temperature
316.9
K
Sound Velocity
2,547.0
m/s
Homogeneity
0.3300

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-977427
Reference Citation

The crystal structure and related material properties of Zn2PtRh were obtained from the Materials Project database (MP-ID: mp-977427, 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_Zn2PtRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.26319686
_cell_length_b   4.26319686
_cell_length_c   4.26319686
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2PtRh
_chemical_formula_sum   'Zn2 Pt1 Rh1'
_cell_volume   54.78872129
_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
  Zn  Zn0  1  0.00000000  0.00000000  0.00000000  1.0
  Zn  Zn1  1  0.50000000  0.50000000  0.50000000  1.0
  Pt  Pt2  1  0.25000000  0.25000000  0.25000000  1.0
  Rh  Rh3  1  0.75000000  0.75000000  0.75000000  1.0
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