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HoCd(CuPt)2

High-Entropy Materials HEA

MP-ID: mp-3245518 · Space group: Imm2 (#44)

Basic Information

Formula
HoCd(CuPt)2
MP-ID
mp-3245518
Elements
4
Sites
6
Density
13.3322
g/cm³
Volume
98.97
ų
Cell a
5.0033
Å
Cell b
5.1742
Å
Cell c
5.1742
Å
α Angle
64.10
°
β Angle
61.09
°
γ Angle
61.09
°
Space Group
Imm2
Point Group
mm2
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic I
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
20.33 4.3674 5.6 (0,1,0)
21.63 4.1094 49.0 (1,1,1)
24.06 3.6985 2.5 (1,1,0)
24.72 3.6019 31.2 (0,1,1)
34.77 2.5804 64.3 (1,2,1)
35.90 2.5016 52.1 (2,1,1)
39.47 2.2831 100.0 (1,0,2)
39.47 2.2831 100.0 (1,-1,1)
41.02 2.2002 30.7 (0,2,1)
41.35 2.1837 70.3 (0,2,0)
41.60 2.1707 56.5 (2,2,1)
41.72 2.1649 83.1 (1,2,2)
44.07 2.0547 60.0 (2,2,2)
49.28 1.8493 9.4 (2,2,0)
50.69 1.8010 4.8 (0,2,2)
53.93 1.7000 9.3 (1,3,1)
55.63 1.6521 1.9 (2,3,2)
55.89 1.6451 14.0 (2,3,1)
56.65 1.6248 4.0 (3,2,2)
59.59 1.5515 13.3 (1,3,0)
61.58 1.5060 22.2 (0,3,1)
63.79 1.4590 10.8 (3,3,2)
63.95 1.4558 7.8 (0,3,0)
64.38 1.4472 14.8 (2,3,0)
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Energy Properties

Formation Energy/atom
-0.70549
eV/atom
Energy/atom
-30.31471
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-30.3147
eV/atom
Volume/atom
16.49
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0000
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
Cu · 0.333
Element Family
3d-TM
Solute Fraction
0.667
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.3297
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
11.0548
J/mol·K
Ω Parameter
1.4290
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
11.283%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3604
smaller = more stable mixing
VEC
10.833
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-11.767
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9591
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3245518
Reference Citation

The crystal structure and related material properties of HoCd(CuPt)2 were obtained from the Materials Project database (MP-ID: mp-3245518, 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_HoCd(CuPt)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.00325565
_cell_length_b   5.17415212
_cell_length_c   5.17415228
_cell_angle_alpha   64.10412392
_cell_angle_beta   61.08670285
_cell_angle_gamma   61.08670226
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HoCd(CuPt)2
_chemical_formula_sum   'Ho1 Cd1 Cu2 Pt2'
_cell_volume   98.96872639
_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
  Ho  Ho0  1  0.74617305  0.75382695  0.75382695  1.0
  Cd  Cd1  1  0.99116285  0.00883715  0.00883715  1.0
  Cu  Cu2  1  0.37859414  0.37130486  0.37130486  1.0
  Cu  Cu3  1  0.87879513  0.37130486  0.37130486  1.0
  Pt  Pt4  1  0.37763641  0.37188110  0.87284507  1.0
  Pt  Pt5  1  0.37763641  0.87284507  0.37188110  1.0
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