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Ho10OsPd5

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3297347 · Space group: P4cc (#103)

Basic Information

Formula
Ho10OsPd5
MP-ID
mp-3297347
Elements
3
Sites
32
Density
10.2719
g/cm³
Volume
766.79
ų
Cell a
10.9798
Å
Cell b
10.9798
Å
Cell c
6.3604
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P4cc
Point Group
4mm
Crystal System
Tetragonal
Bravais Lattice
Tetragonal P
Stability
Yes
Packing Fraction
0.6800

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
8.05 10.9798 9.1 (1,0,0)
11.40 7.7639 10.7 (1,1,0)
16.14 5.4899 12.0 (2,0,0)
18.07 4.9103 5.1 (2,1,0)
22.88 3.8868 2.1 (2,1,1)
22.91 3.8820 3.7 (2,2,0)
25.66 3.4721 8.5 (3,1,0)
28.06 3.1802 1.0 (0,0,2)
29.24 3.0547 25.3 (1,0,2)
29.31 3.0476 87.6 (3,1,1)
30.37 2.9429 4.2 (1,1,2)
32.54 2.7518 26.1 (2,0,2)
32.60 2.7467 76.5 (3,2,1)
32.62 2.7450 1.8 (4,0,0)
33.57 2.6693 83.3 (2,1,2)
34.66 2.5880 5.6 (3,3,0)
36.53 2.4601 7.7 (2,2,2)
36.58 2.4564 97.0 (4,1,1)
36.60 2.4552 100.0 (4,2,0)
37.46 2.4006 46.2 (3,0,2)
38.38 2.3452 36.0 (3,1,2)
39.34 2.2904 36.1 (4,2,1)
41.04 2.1995 23.2 (3,2,2)
41.10 2.1960 1.4 (4,3,0)
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Energy Properties

Formation Energy/atom
-0.70838
eV/atom
Energy/atom
-31.74593
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-31.7459
eV/atom
Volume/atom
23.96
ų
c/a Ratio
0.5793

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
1.2648
μB
Mag. Ordering
FM
Mag. Sites
8
Magnetization/Volume
0.001650
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ho · 0.625
Element Family
Lanthanide
Solute Fraction
0.375
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8305
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
6.9050
J/mol·K
Ω Parameter
6.5815
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
11.557%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4696
smaller = more stable mixing
VEC
10.500
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-1.953
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7560
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.623
Family
Ho-rich Multi-Component
Matrix Element
Ho · 0.625

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3297347
Reference Citation

The crystal structure and related material properties of Ho10OsPd5 were obtained from the Materials Project database (MP-ID: mp-3297347, 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_Ho10OsPd5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.97980697
_cell_length_b   10.97980697
_cell_length_c   6.36044053
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ho10OsPd5
_chemical_formula_sum   'Ho20 Os2 Pd10'
_cell_volume   766.79029292
_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
  Ho  Ho0  1  0.29918338  0.08486088  0.37227694  1.0
  Ho  Ho1  1  0.29918338  0.91513912  0.87227694  1.0
  Ho  Ho2  1  0.70081662  0.08486088  0.87227694  1.0
  Ho  Ho3  1  0.70081662  0.91513912  0.37227694  1.0
  Ho  Ho4  1  0.58486088  0.79918338  0.87227694  1.0
  Ho  Ho5  1  0.58486088  0.20081662  0.37227694  1.0
  Ho  Ho6  1  0.41513912  0.79918338  0.37227694  1.0
  Ho  Ho7  1  0.41513912  0.20081662  0.87227694  1.0
  Ho  Ho8  1  0.20927164  0.40998953  0.63037352  1.0
  Ho  Ho9  1  0.20927164  0.59001047  0.13037352  1.0
  Ho  Ho10  1  0.79072836  0.40998953  0.13037352  1.0
  Ho  Ho11  1  0.79072836  0.59001047  0.63037352  1.0
  Ho  Ho12  1  0.90998953  0.70927164  0.13037352  1.0
  Ho  Ho13  1  0.90998953  0.29072836  0.63037352  1.0
  Ho  Ho14  1  0.09001047  0.70927164  0.63037352  1.0
  Ho  Ho15  1  0.09001047  0.29072836  0.13037352  1.0
  Ho  Ho16  1  0.00000000  0.00000000  0.49386731  1.0
  Ho  Ho17  1  0.00000000  0.00000000  0.99386731  1.0
  Ho  Ho18  1  0.50000000  0.50000000  0.99386731  1.0
  Ho  Ho19  1  0.50000000  0.50000000  0.49386731  1.0
  Os  Os20  1  0.50000000  0.00000000  0.12183107  1.0
  Os  Os21  1  0.50000000  0.00000000  0.62183107  1.0
  Pd  Pd22  1  0.84952477  0.15715626  0.24817139  1.0
  Pd  Pd23  1  0.84952477  0.84284374  0.74817139  1.0
  Pd  Pd24  1  0.15047523  0.15715626  0.74817139  1.0
  Pd  Pd25  1  0.15047523  0.84284374  0.24817139  1.0
  Pd  Pd26  1  0.65715626  0.34952477  0.74817139  1.0
  Pd  Pd27  1  0.65715626  0.65047523  0.24817139  1.0
  Pd  Pd28  1  0.34284374  0.34952477  0.24817139  1.0
  Pd  Pd29  1  0.34284374  0.65047523  0.74817139  1.0
  Pd  Pd30  1  0.00000000  0.50000000  0.88715194  1.0
  Pd  Pd31  1  0.00000000  0.50000000  0.38715194  1.0
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