Mg6TiCd

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1021347 · Space group: Amm2 (#38)

Materials Project API

Basic Information

Formula

Mg6TiCd

MP-ID

mp-1021347

Elements

Sites

Density

2.9517

g/cm³

Volume

344.42

Å³

Cell a

4.9814

Cell b

6.2798

Cell c

11.0102

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
16.10	5.5051	34.1	(0,0,2)
16.25	5.4549	20.5	(0,1,1)
17.81	4.9814	26.1	(1,0,0)
24.09	3.6937	24.5	(1,0,2)
24.20	3.6784	19.1	(1,1,1)
28.16	3.1686	6.2	(0,1,3)
28.43	3.1399	8.4	(0,2,0)
32.53	2.7526	16.4	(0,0,4)
32.84	2.7274	32.1	(0,2,2)
33.52	2.6736	8.0	(1,1,3)
33.74	2.6562	10.6	(1,2,0)
36.06	2.4907	36.1	(2,0,0)
37.32	2.4092	51.1	(1,0,4)
37.60	2.3923	100.0	(1,2,2)
39.72	2.2692	6.9	(2,0,2)
39.79	2.2657	4.7	(2,1,1)
43.55	2.0780	2.2	(0,1,5)
43.73	2.0698	4.6	(0,2,4)
44.03	2.0564	2.1	(0,3,1)
46.37	1.9582	3.2	(2,1,3)
46.54	1.9513	4.1	(2,2,0)
47.40	1.9178	2.8	(1,1,5)
47.57	1.9114	8.4	(1,2,4)
47.85	1.9008	2.6	(1,3,1)

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Energy Properties

Formation Energy/atom

0.08762

eV/atom

Energy/atom

-2.24217

eV/atom

Energy above Hull

0.1131

eV/atom

Uncorrected Energy

-2.2422

eV/atom

Volume/atom

21.53

Å³

c/a Ratio

2.2103

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

2.9066

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.008440

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

3.1282

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

3.095%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.1373

smaller = more stable mixing

VEC

3.500

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-1.973

kJ/mol; negative = exothermic mixing

Entropy Norm

0.6696

SS Former

Phase Tendency

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.713

Family

Mg-based Alloy

Matrix Element

Mg · 0.750

Related Tasks

Related computation task IDs (1)

aaacgdgm

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1021347

Reference Citation

The crystal structure and related material properties of Mg6TiCd were obtained from the Materials Project database (MP-ID: mp-1021347, 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_Mg6TiCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.98136100
_cell_length_b   6.27977200
_cell_length_c   11.01019700
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg6TiCd
_chemical_formula_sum   'Mg12 Ti2 Cd2'
_cell_volume   344.41890526
_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  0.24739100  0.41734200  1.0
  Mg  Mg1  1  0.50000000  0.75260900  0.41734200  1.0
  Mg  Mg2  1  0.00000000  0.75542500  0.08503400  1.0
  Mg  Mg3  1  0.00000000  0.24457500  0.08503400  1.0
  Mg  Mg4  1  0.00000000  0.00000000  0.32921900  1.0
  Mg  Mg5  1  0.00000000  0.50000000  0.33275300  1.0
  Mg  Mg6  1  0.50000000  0.74739100  0.91734200  1.0
  Mg  Mg7  1  0.50000000  0.25260900  0.91734200  1.0
  Mg  Mg8  1  0.00000000  0.25542500  0.58503400  1.0
  Mg  Mg9  1  0.00000000  0.74457500  0.58503400  1.0
  Mg  Mg10  1  0.00000000  0.50000000  0.82921900  1.0
  Mg  Mg11  1  0.00000000  0.00000000  0.83275300  1.0
  Ti  Ti12  1  0.50000000  0.00000000  0.16787200  1.0
  Ti  Ti13  1  0.50000000  0.50000000  0.66787200  1.0
  Cd  Cd14  1  0.50000000  0.50000000  0.16540000  1.0
  Cd  Cd15  1  0.50000000  0.00000000  0.66540000  1.0

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