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Hf8GaRh11

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3297102 · Space group: I4/m (#87)

Basic Information

Formula
Hf8GaRh11
MP-ID
mp-3297102
Elements
3
Sites
20
Density
13.3757
g/cm³
Volume
326.45
ų
Cell a
7.1360
Å
Cell b
7.6471
Å
Cell c
7.6471
Å
α Angle
77.43
°
β Angle
62.19
°
γ Angle
62.19
°
Space Group
I4/m
Point Group
4/m
Crystal System
Tetragonal
Bravais Lattice
Tetragonal I
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
18.55 4.7827 1.5 (0,1,1)
24.96 3.5680 5.1 (2,1,1)
26.35 3.3818 3.2 (0,2,0)
29.53 3.0248 4.0 (0,2,1)
29.53 3.0248 4.0 (0,2,-1)
36.12 2.4867 1.1 (1,0,-2)
36.12 2.4867 5.6 (1,1,-2)
36.61 2.4545 3.5 (2,1,-1)
39.02 2.3084 1.1 (3,2,1)
39.02 2.3084 1.1 (3,2,2)
39.04 2.3073 100.0 (2,0,-1)
39.04 2.3073 33.3 (2,0,3)
40.90 2.2063 2.9 (1,3,2)
42.25 2.1389 49.5 (0,3,1)
49.70 1.8345 1.2 (2,4,2)
51.21 1.7840 14.7 (4,2,2)
56.06 1.6404 1.5 (0,4,1)
60.22 1.5367 1.2 (4,1,0)
60.22 1.5367 2.2 (4,0,1)
60.27 1.5357 1.7 (1,4,3)
61.29 1.5124 14.4 (0,4,2)
62.29 1.4905 1.4 (2,5,2)
63.64 1.4622 1.3 (1,5,0)
63.96 1.4555 1.2 (2,4,4)
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Energy Properties

Formation Energy/atom
-0.98975
eV/atom
Energy/atom
-32.89738
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-32.8974
eV/atom
Volume/atom
16.32
ų
c/a Ratio
1.0716

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0003
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
Rh · 0.550
Element Family
4d-TM
Solute Fraction
0.450
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8451
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.0263
J/mol·K
Ω Parameter
0.3542
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
8.475%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4718
smaller = more stable mixing
VEC
6.700
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-44.591
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7693
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.591
Family
Rh-rich Multi-Component
Matrix Element
Rh · 0.550

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3297102
Reference Citation

The crystal structure and related material properties of Hf8GaRh11 were obtained from the Materials Project database (MP-ID: mp-3297102, 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_Hf8GaRh11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.13601625
_cell_length_b   7.64709607
_cell_length_c   7.64709611
_cell_angle_alpha   77.42601442
_cell_angle_beta   62.18726599
_cell_angle_gamma   62.18725079
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf8GaRh11
_chemical_formula_sum   'Hf8 Ga1 Rh11'
_cell_volume   326.45418871
_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
  Hf  Hf0  1  0.69681408  0.39418584  0.21218699  1.0
  Hf  Hf1  1  0.30318592  0.60581416  0.78781301  1.0
  Hf  Hf2  1  0.09099793  0.21218699  0.60581416  1.0
  Hf  Hf3  1  0.90900207  0.78781301  0.39418584  1.0
  Hf  Hf4  1  0.76417539  0.64653980  0.82510942  1.0
  Hf  Hf5  1  0.23582461  0.35346020  0.17489058  1.0
  Hf  Hf6  1  0.41071519  0.82510942  0.35346020  1.0
  Hf  Hf7  1  0.58928481  0.17489058  0.64653980  1.0
  Ga  Ga8  1  0.00000000  0.00000000  0.00000000  1.0
  Rh  Rh9  1  0.50000000  0.00000000  0.00000000  1.0
  Rh  Rh10  1  0.25000000  0.50000000  0.50000000  1.0
  Rh  Rh11  1  0.75000000  0.50000000  0.50000000  1.0
  Rh  Rh12  1  0.67209648  0.30119506  0.90243677  1.0
  Rh  Rh13  1  0.87572930  0.69880494  0.09756323  1.0
  Rh  Rh14  1  0.97329254  0.90243677  0.69880494  1.0
  Rh  Rh15  1  0.57453425  0.09756323  0.30119506  1.0
  Rh  Rh16  1  0.32790352  0.69880494  0.09756323  1.0
  Rh  Rh17  1  0.12427070  0.30119506  0.90243677  1.0
  Rh  Rh18  1  0.02670746  0.09756323  0.30119506  1.0
  Rh  Rh19  1  0.42546575  0.90243677  0.69880494  1.0
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