YbHo(In2Rh)2

High-Entropy Materials HEA

MP-ID: mp-3246334 · Space group: Amm2 (#38)

Materials Project API

Basic Information

Formula

YbHo(In2Rh)2

MP-ID

mp-3246334

Elements

Sites

Density

9.7162

g/cm³

Volume

171.43

Å³

Cell a

5.3797

Cell b

5.3797

Cell c

8.2813

α Angle

90.00

β Angle

90.00

γ Angle

134.34

Space Group

Amm2

Point Group

mm2

Crystal System

Orthorhombic

Bravais Lattice

Stability

Packing Fraction

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
17.89	4.9582	3.0	(1,-1,0)
21.46	4.1407	5.3	(0,0,2)
23.12	3.8478	1.1	(1,0,0)
28.08	3.1782	3.1	(1,-1,2)
31.75	2.8187	100.0	(1,0,2)
34.61	2.5916	20.8	(2,-1,0)
36.24	2.4791	4.5	(2,-2,0)
36.32	2.4733	63.2	(2,-1,1)
37.28	2.4119	27.3	(1,-1,3)
37.88	2.3750	27.7	(2,-2,1)
40.21	2.2430	21.0	(1,0,3)
41.09	2.1968	19.7	(2,-1,2)
42.50	2.1270	13.3	(2,-2,2)
43.35	2.0875	32.4	(1,1,0)
43.72	2.0703	15.3	(0,0,4)
48.16	1.8894	11.7	(2,-1,3)
48.86	1.8640	1.2	(1,1,2)
49.41	1.8445	3.8	(2,-2,3)
50.03	1.8232	5.2	(1,0,4)
52.44	1.7448	1.1	(2,0,2)
57.74	1.5968	1.1	(3,-1,0)
57.74	1.5968	1.1	(1,-3,0)
58.47	1.5784	14.5	(2,0,3)
58.78	1.5709	1.9	(1,-1,5)

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Energy Properties

Formation Energy/atom

-0.70517

eV/atom

Energy/atom

-26.70487

eV/atom

Energy above Hull

0.0045

eV/atom

Uncorrected Energy

-26.7049

eV/atom

Volume/atom

21.43

Å³

c/a Ratio

1.5394

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0000

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000000

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

In · 0.500

Element Family

PostTransition-Noble

Solute Fraction

0.500

Interstitial Fraction

0.000

High-Entropy Alloy Features

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

1.2130

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

10.0849

J/mol·K

Ω Parameter

1.8006

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

9.820%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.3966

smaller = more stable mixing

VEC

6.875

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

6.318

kJ/mol; negative = exothermic mixing

Entropy Norm

0.8750

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaahcsha

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3246334

Reference Citation

The crystal structure and related material properties of YbHo(In2Rh)2 were obtained from the Materials Project database (MP-ID: mp-3246334, 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

3D Crystal Structure Rendering

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Raw CIF Data

# generated using pymatgen
data_YbHo(In2Rh)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.37972210
_cell_length_b   5.37972206
_cell_length_c   8.28133108
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   134.33655024
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YbHo(In2Rh)2
_chemical_formula_sum   'Yb1 Ho1 In4 Rh2'
_cell_volume   171.42568989
_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
  Yb  Yb0  1  0.93409568  0.06590432  0.75000000  1.0
  Ho  Ho1  1  0.06830748  0.93169252  0.25000000  1.0
  In  In2  1  0.64607249  0.35392751  0.55058310  1.0
  In  In3  1  0.35482730  0.64517270  0.45302396  1.0
  In  In4  1  0.64607249  0.35392751  0.94941690  1.0
  In  In5  1  0.35482730  0.64517270  0.04697604  1.0
  Rh  Rh6  1  0.21766598  0.78233402  0.75000000  1.0
  Rh  Rh7  1  0.77813328  0.22186672  0.25000000  1.0

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