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Ho3Ni13B2

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1105707 · Space group: P6/mmm (#191)

Basic Information

Formula
Ho3Ni13B2
MP-ID
mp-1105707
Elements
3
Sites
18
Density
9.3792
g/cm³
Volume
226.52
ų
Cell a
4.9064
Å
Cell b
4.9064
Å
Cell c
10.8654
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6/mmm
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
No
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
20.91 4.2491 11.4 (1,0,-1,0)
24.58 3.6218 6.9 (0,0,0,3)
32.48 2.7564 100.0 (1,0,-1,3)
32.98 2.7163 2.0 (0,0,0,4)
36.63 2.4532 42.6 (2,-1,-1,0)
37.59 2.3930 2.9 (2,-1,-1,1)
39.37 2.2886 2.3 (1,0,-1,4)
40.34 2.2358 9.4 (2,-1,-1,2)
41.56 2.1731 11.6 (0,0,0,5)
42.55 2.1245 25.2 (2,-2,0,0)
42.55 2.1245 50.3 (2,0,-2,0)
43.40 2.0850 1.5 (2,0,-2,1)
44.61 2.0311 42.7 (1,-2,1,3)
44.61 2.0311 85.4 (2,-1,-1,3)
45.86 1.9786 2.1 (2,-2,0,2)
45.86 1.9786 4.1 (2,0,-2,2)
46.96 1.9347 4.7 (1,0,-1,5)
49.76 1.8325 1.5 (2,-2,0,3)
50.39 1.8109 19.0 (0,0,0,6)
54.86 1.6735 1.0 (2,-2,0,4)
55.13 1.6659 5.7 (1,0,-1,6)
57.37 1.6060 1.4 (3,-1,-2,0)
60.99 1.5191 5.4 (2,0,-2,5)
63.35 1.4681 29.5 (3,-1,-2,3)
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Energy Properties

Formation Energy/atom
-0.43123
eV/atom
Energy/atom
-6.11421
eV/atom
Energy above Hull
0.0117
eV/atom
Uncorrected Energy
-6.1142
eV/atom
Volume/atom
12.58
ų
c/a Ratio
2.2145

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.3634
μB
Mag. Ordering
FM
Mag. Sites
7
Magnetization/Volume
0.001600
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ni · 0.722
Element Family
3d-TM
Solute Fraction
0.278
Interstitial Fraction
0.111

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.7778
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
6.4665
J/mol·K
Ω Parameter
0.7244
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
18.047%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2630
smaller = more stable mixing
VEC
9.389
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-16.049
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7080
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.769
Family
Ni-based Alloy
Matrix Element
Ni · 0.722

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1105707
Reference Citation

The crystal structure and related material properties of Ho3Ni13B2 were obtained from the Materials Project database (MP-ID: mp-1105707, 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_Ho3Ni13B2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.90637900
_cell_length_b   4.90637938
_cell_length_c   10.86537300
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000421
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ho3Ni13B2
_chemical_formula_sum   'Ho3 Ni13 B2'
_cell_volume   226.51526367
_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  0.00000000  0.00000000  0.00000000  1.0
  Ho  Ho1  1  0.00000000  0.00000000  0.67054200  1.0
  Ho  Ho2  1  0.00000000  0.00000000  0.32945800  1.0
  Ni  Ni3  1  0.50000000  0.50000000  0.50000000  1.0
  Ni  Ni4  1  0.50000000  0.00000000  0.50000000  1.0
  Ni  Ni5  1  0.00000000  0.50000000  0.50000000  1.0
  Ni  Ni6  1  0.66666700  0.33333300  0.68085400  1.0
  Ni  Ni7  1  0.33333300  0.66666700  0.68085400  1.0
  Ni  Ni8  1  0.33333300  0.66666700  0.31914600  1.0
  Ni  Ni9  1  0.66666700  0.33333300  0.31914600  1.0
  Ni  Ni10  1  0.50000000  0.50000000  0.86583900  1.0
  Ni  Ni11  1  0.50000000  0.00000000  0.86583900  1.0
  Ni  Ni12  1  0.00000000  0.50000000  0.86583900  1.0
  Ni  Ni13  1  0.50000000  0.50000000  0.13416100  1.0
  Ni  Ni14  1  0.50000000  0.00000000  0.13416100  1.0
  Ni  Ni15  1  0.00000000  0.50000000  0.13416100  1.0
  B  B16  1  0.66666700  0.33333300  0.00000000  1.0
  B  B17  1  0.33333300  0.66666700  0.00000000  1.0
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