Mg6TiFe

高熵材料 HEA 传统材料 TRA

MP-ID: mp-1022457 · Space group: Amm2 (#38)

Materials Project API

Basic Information

Formula

Mg6TiFe

MP-ID

mp-1022457

Elements

Sites

Density

2.7821

g/cm³

Volume

297.89

Å³

Cell a

4.8138

Cell b

5.7235

Cell c

10.8118

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
16.40	5.4059	23.6	(0,0,2)
17.53	5.0584	1.9	(0,1,1)
18.43	4.8138	12.9	(1,0,0)
24.77	3.5951	8.5	(1,0,2)
31.26	2.8618	3.4	(0,2,0)
33.14	2.7029	10.5	(0,0,4)
35.49	2.5292	37.0	(0,2,2)
36.53	2.4599	4.3	(1,2,0)
37.36	2.4069	45.4	(2,0,0)
38.19	2.3568	73.3	(1,0,4)
40.28	2.2390	100.0	(1,2,2)
41.05	2.1988	4.2	(2,0,2)
46.20	1.9650	1.3	(0,2,4)
49.48	1.8420	1.6	(2,2,0)
50.14	1.8193	5.2	(1,2,4)
50.79	1.7975	5.8	(2,0,4)
52.48	1.7436	22.5	(2,2,2)
54.36	1.6876	2.2	(1,0,6)
60.74	1.5249	18.0	(0,2,6)
64.06	1.4537	3.4	(1,2,6)
65.20	1.4309	7.9	(0,4,0)
67.94	1.3798	12.0	(3,0,4)
69.36	1.3549	17.9	(3,2,2)
69.56	1.3515	3.4	(0,0,8)

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Energy Properties

Formation Energy/atom

0.24718

eV/atom

Energy/atom

-3.02136

eV/atom

Energy above Hull

0.3524

eV/atom

Uncorrected Energy

-3.0214

eV/atom

Volume/atom

18.62

Å³

c/a Ratio

2.2460

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

1.1304

μB

Mag. Ordering

FiM

Mag. Sites

Magnetization/Volume

0.003790

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Mg · 0.750

Element Family

Alkali-AlkEarth

Solute Fraction

0.250

Interstitial Fraction

0.000

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

1.2487

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

7.429%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.1778

smaller = more stable mixing

VEC

3.000

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

5.688

kJ/mol; negative = exothermic mixing

Entropy Norm

0.6696

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaacgewl

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1022457

Reference Citation

The crystal structure and related material properties of Mg6TiFe were obtained from the Materials Project database (MP-ID: mp-1022457, 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_Mg6TiFe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.81383200
_cell_length_b   5.72350300
_cell_length_c   10.81177300
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg6TiFe
_chemical_formula_sum   'Mg12 Ti2 Fe2'
_cell_volume   297.88577393
_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  0.25082200  0.42383600  1.0
  Mg  Mg1  1  0.50000000  0.74917800  0.42383600  1.0
  Mg  Mg2  1  0.00000000  0.75478100  0.08483400  1.0
  Mg  Mg3  1  0.00000000  0.24521900  0.08483400  1.0
  Mg  Mg4  1  0.00000000  0.00000000  0.31243200  1.0
  Mg  Mg5  1  0.00000000  0.50000000  0.32474300  1.0
  Mg  Mg6  1  0.50000000  0.75082200  0.92383600  1.0
  Mg  Mg7  1  0.50000000  0.24917800  0.92383600  1.0
  Mg  Mg8  1  0.00000000  0.25478100  0.58483400  1.0
  Mg  Mg9  1  0.00000000  0.74521900  0.58483400  1.0
  Mg  Mg10  1  0.00000000  0.50000000  0.81243200  1.0
  Mg  Mg11  1  0.00000000  0.00000000  0.82474300  1.0
  Ti  Ti12  1  0.50000000  0.50000000  0.17469600  1.0
  Ti  Ti13  1  0.50000000  0.00000000  0.67469600  1.0
  Fe  Fe14  1  0.50000000  0.00000000  0.17078500  1.0
  Fe  Fe15  1  0.50000000  0.50000000  0.67078500  1.0

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