Mg6CdFe

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1022159 · Space group: Amm2 (#38)

Materials Project API

Basic Information

Formula

Mg6CdFe

MP-ID

mp-1022159

Elements

Sites

Density

3.2947

g/cm³

Volume

316.60

Å³

Cell a

4.8612

Cell b

6.1478

Cell c

10.5937

α Angle

90.00

β Angle

90.00

γ Angle

90.00

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
16.67	5.3173	11.7	(0,1,1)
16.74	5.2969	39.7	(0,0,2)
18.25	4.8612	29.8	(1,0,0)
24.82	3.5878	14.0	(1,1,1)
24.86	3.5815	26.2	(1,0,2)
29.05	3.0739	9.8	(0,2,0)
29.16	3.0621	3.8	(0,1,3)
33.71	2.6586	33.5	(0,2,2)
33.85	2.6484	16.4	(0,0,4)
34.52	2.5981	12.1	(1,2,0)
34.62	2.5909	5.1	(1,1,3)
36.98	2.4306	36.3	(2,0,0)
38.60	2.3326	100.0	(1,2,2)
38.72	2.3257	49.8	(1,0,4)
40.82	2.2106	2.6	(2,1,1)
40.85	2.2091	8.3	(2,0,2)
45.06	2.0120	1.7	(0,3,1)
45.19	2.0064	4.6	(0,2,4)
45.27	2.0031	1.7	(0,1,5)
47.70	1.9066	4.8	(2,2,0)
47.78	1.9038	2.0	(2,1,3)
49.00	1.8590	1.3	(1,3,1)
49.12	1.8547	10.2	(1,2,4)
49.20	1.8521	1.3	(1,1,5)

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Energy Properties

Formation Energy/atom

0.14273

eV/atom

Energy/atom

-2.25888

eV/atom

Energy above Hull

0.1682

eV/atom

Uncorrected Energy

-2.2589

eV/atom

Volume/atom

19.79

Å³

c/a Ratio

2.1792

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

4.8883

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.015440

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Mg · 0.750

Element Family

Alkali-AlkEarth

Solute Fraction

0.250

Interstitial Fraction

0.000

High-Entropy Alloy Features

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

0.7356

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

6.1160

J/mol·K

Ω Parameter

1.3820

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

7.252%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.1980

smaller = more stable mixing

VEC

4.000

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-4.394

kJ/mol; negative = exothermic mixing

Entropy Norm

0.6696

SS Former

Phase Tendency

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.636

Family

Mg-based Alloy

Matrix Element

Mg · 0.750

Related Tasks

Related computation task IDs (1)

aaacgejj

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1022159

Reference Citation

The crystal structure and related material properties of Mg6CdFe were obtained from the Materials Project database (MP-ID: mp-1022159, 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_Mg6CdFe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.86123900
_cell_length_b   6.14775400
_cell_length_c   10.59373700
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg6CdFe
_chemical_formula_sum   'Mg12 Cd2 Fe2'
_cell_volume   316.60126183
_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
  Mg  Mg0  1  0.50000000  0.25195500  0.08345300  1.0
  Mg  Mg1  1  0.50000000  0.74804500  0.08345300  1.0
  Mg  Mg2  1  0.00000000  0.23611600  0.91200000  1.0
  Mg  Mg3  1  0.00000000  0.76388400  0.91200000  1.0
  Mg  Mg4  1  0.00000000  0.50000000  0.17608900  1.0
  Mg  Mg5  1  0.00000000  0.50000000  0.66716500  1.0
  Mg  Mg6  1  0.50000000  0.75195500  0.58345300  1.0
  Mg  Mg7  1  0.50000000  0.24804500  0.58345300  1.0
  Mg  Mg8  1  0.00000000  0.73611600  0.41200000  1.0
  Mg  Mg9  1  0.00000000  0.26388400  0.41200000  1.0
  Mg  Mg10  1  0.00000000  0.00000000  0.67608900  1.0
  Mg  Mg11  1  0.00000000  0.00000000  0.16716500  1.0
  Cd  Cd12  1  0.50000000  0.50000000  0.83354000  1.0
  Cd  Cd13  1  0.50000000  0.00000000  0.33354000  1.0
  Fe  Fe14  1  0.50000000  0.50000000  0.33230500  1.0
  Fe  Fe15  1  0.50000000  0.00000000  0.83230500  1.0

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