Mg6VCr

高熵材料 HEA 传统材料 TRA

MP-ID: mp-1021690 · Space group: Amm2 (#38)

Materials Project API

Basic Information

Formula

Mg6VCr

MP-ID

mp-1021690

Elements

Sites

Density

2.5003

g/cm³

Volume

330.43

Å³

Cell a

4.9958

Cell b

6.1973

Cell c

10.6727

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
16.54	5.3593	20.3	(0,1,1)
16.61	5.3364	3.1	(0,0,2)
24.36	3.6543	3.2	(1,1,1)
24.41	3.6470	6.9	(1,0,2)
28.81	3.0987	3.1	(0,2,0)
33.44	2.6797	21.7	(0,2,2)
33.59	2.6682	13.7	(0,0,4)
34.16	2.6251	7.3	(1,1,3)
35.95	2.4979	38.6	(2,0,0)
38.11	2.3614	100.0	(1,2,2)
38.24	2.3535	45.7	(1,0,4)
39.82	2.2641	3.9	(2,1,1)
44.91	2.0182	1.1	(0,1,5)
46.71	1.9447	1.4	(2,2,0)
48.44	1.8792	1.7	(1,3,1)
48.58	1.8742	1.9	(1,2,4)
49.91	1.8272	13.0	(2,2,2)
50.02	1.8235	8.3	(2,0,4)
54.56	1.6821	1.6	(1,3,3)
59.68	1.5493	7.8	(0,4,0)
59.96	1.5427	15.6	(0,2,6)
66.06	1.4144	17.7	(3,2,2)
66.15	1.4127	8.1	(3,0,4)
70.25	1.3398	2.7	(0,4,4)

Get direct link

Energy Properties

Formation Energy/atom

0.33911

eV/atom

Energy/atom

-3.22586

eV/atom

Energy above Hull

0.3495

eV/atom

Uncorrected Energy

-3.2259

eV/atom

Volume/atom

20.65

Å³

c/a Ratio

2.1363

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

14.0975

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.042660

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

1.1709

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

8.279%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.1453

smaller = more stable mixing

VEC

2.875

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-6.464

kJ/mol; negative = exothermic mixing

Entropy Norm

0.6696

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaacgftb

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1021690

Reference Citation

The crystal structure and related material properties of Mg6VCr were obtained from the Materials Project database (MP-ID: mp-1021690, 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…

Style: Ball & Stick | Drag to rotate · Scroll to zoom · Right-click to pan

Raw CIF Data

# generated using pymatgen
data_Mg6VCr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.99580000
_cell_length_b   6.19732800
_cell_length_c   10.67269100
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg6VCr
_chemical_formula_sum   'Mg12 V2 Cr2'
_cell_volume   330.43303675
_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  0.00000000  0.75937600  0.58559700  1.0
  Mg  Mg1  1  0.00000000  0.24062400  0.58559700  1.0
  Mg  Mg2  1  0.00000000  0.00000000  0.33465900  1.0
  Mg  Mg3  1  0.50000000  0.74012600  0.41346800  1.0
  Mg  Mg4  1  0.50000000  0.25987400  0.41346800  1.0
  Mg  Mg5  1  0.50000000  0.00000000  0.16549200  1.0
  Mg  Mg6  1  0.00000000  0.25937600  0.08559700  1.0
  Mg  Mg7  1  0.00000000  0.74062400  0.08559700  1.0
  Mg  Mg8  1  0.00000000  0.50000000  0.83465900  1.0
  Mg  Mg9  1  0.50000000  0.24012600  0.91346800  1.0
  Mg  Mg10  1  0.50000000  0.75987400  0.91346800  1.0
  Mg  Mg11  1  0.50000000  0.50000000  0.66549200  1.0
  V  V12  1  0.00000000  0.00000000  0.83568300  1.0
  V  V13  1  0.00000000  0.50000000  0.33568300  1.0
  Cr  Cr14  1  0.50000000  0.00000000  0.66603500  1.0
  Cr  Cr15  1  0.50000000  0.50000000  0.16603500  1.0

Get direct link