Lu2CuRh

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-973951 · Space group: Fm-3m (#225)

Materials Project API

Basic Information

Formula

Lu2CuRh

MP-ID

mp-973951

Elements

Sites

Density

11.4646

g/cm³

Volume

74.79

Å³

Cell a

4.7293

Cell b

4.7293

Cell c

4.7293

α Angle

60.00

β Angle

60.00

γ Angle

60.00

Space Group

Fm-3m

Point Group

m-3m

Crystal System

Cubic

Bravais Lattice

Stability

Yes

Packing Fraction

0.7405

X-ray Diffraction

Diffraction Pattern

Target / Radiation

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

Diffraction Peaks (Top 9)

2θ	d (Å)	I	hkl
23.03	3.8614	1.2	(1,1,1)
26.66	3.3441	13.3	(1,1,0)
38.06	2.3646	100.0	(2,1,1)
47.07	1.9307	4.1	(2,2,2)
54.91	1.6720	17.2	(2,2,0)
62.06	1.4955	5.6	(3,2,1)
68.76	1.3652	34.7	(3,3,2)
81.39	1.1823	10.9	(4,2,2)
87.51	1.1147	3.0	(4,3,3)

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Energy Properties

Formation Energy/atom

-0.68789

eV/atom

Energy/atom

-28.47359

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-28.4736

eV/atom

Volume/atom

18.70

Å³

c/a Ratio

1.0000

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

0.0000

μB

Mag. Ordering

Unknown

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

Lu · 0.500

Element Family

Lanthanide

Solute Fraction

0.500

Interstitial Fraction

0.000

High-Entropy Alloy Features

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

1.0397

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

8.6442

J/mol·K

Ω Parameter

4.5969

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

14.446%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.4315

smaller = more stable mixing

VEC

6.000

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-3.500

kJ/mol; negative = exothermic mixing

Entropy Norm

0.9464

SS Former

Phase Tendency

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.509

Family

Lu-rich Multi-Component

Matrix Element

Lu · 0.500

Related Tasks

Related computation task IDs (5)

aaadnxnq aaadwoky aaaehksr aaaetfov aaafjcuh

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-973951

Reference Citation

The crystal structure and related material properties of Lu2CuRh were obtained from the Materials Project database (MP-ID: mp-973951, 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

Loading 3D structure…

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Raw CIF Data

# generated using pymatgen
data_Lu2CuRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72925583
_cell_length_b   4.72925583
_cell_length_c   4.72925583
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Lu2CuRh
_chemical_formula_sum   'Lu2 Cu1 Rh1'
_cell_volume   74.79342597
_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
  Lu  Lu0  1  -0.00000000  0.00000000  0.00000000  1.0
  Lu  Lu1  1  0.50000000  0.50000000  0.50000000  1.0
  Cu  Cu2  1  0.25000000  0.25000000  0.25000000  1.0
  Rh  Rh3  1  0.75000100  0.75000100  0.75000100  1.0

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