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MgCr3Tc3P4

High-Entropy Materials HEA

MP-ID: mp-3341936 · Space group: P-6m2 (#187)

Basic Information

Formula
MgCr3Tc3P4
MP-ID
mp-3341936
Elements
4
Sites
11
Density
6.5526
g/cm³
Volume
151.59
ų
Cell a
7.3427
Å
Cell b
7.3424
Å
Cell c
3.2469
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.01
°
Space Group
P-6m2
Point Group
-6m2
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
Yes
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
13.93 6.3590 47.3 (1,-1,0,0)
13.93 6.3586 47.3 (1,0,-1,0)
13.93 6.3584 47.3 (0,1,-1,0)
24.24 3.6713 6.5 (2,-1,-1,0)
24.24 3.6712 6.5 (1,-2,1,0)
24.25 3.6710 6.5 (1,1,-2,0)
27.47 3.2469 33.7 (0,0,0,1)
28.06 3.1795 15.8 (2,-2,0,0)
28.07 3.1793 15.8 (2,0,-2,0)
28.07 3.1792 15.8 (0,2,-2,0)
30.92 2.8918 26.8 (1,-1,0,1)
30.92 2.8917 26.8 (1,0,-1,1)
30.92 2.8917 26.8 (0,1,-1,1)
36.96 2.4322 15.1 (2,-1,-1,1)
36.96 2.4322 15.1 (1,-2,1,1)
36.96 2.4321 15.1 (1,1,-2,1)
37.42 2.4035 16.0 (3,-2,-1,0)
37.42 2.4034 15.9 (2,-3,1,0)
37.42 2.4034 15.9 (3,-1,-2,0)
37.42 2.4033 15.9 (1,-3,2,0)
37.42 2.4032 15.9 (2,1,-3,0)
37.42 2.4032 15.9 (1,2,-3,0)
39.68 2.2717 100.0 (2,-2,0,1)
39.68 2.2716 100.0 (2,0,-2,1)
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Energy Properties

Formation Energy/atom
-0.56903
eV/atom
Energy/atom
-15.41372
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-15.4137
eV/atom
Volume/atom
13.78
ų
c/a Ratio
0.4422

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
7.2507
μB
Mag. Ordering
FiM
Mag. Sites
6
Magnetization/Volume
0.047830
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
P · 0.364
Element Family
Metalloid-Nonmetal
Solute Fraction
0.636
Interstitial Fraction
0.364

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.2945
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
10.7628
J/mol·K
Ω Parameter
1.8944
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
11.781%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2788
smaller = more stable mixing
VEC
5.000
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-8.275
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9338
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3341936
Reference Citation

The crystal structure and related material properties of MgCr3Tc3P4 were obtained from the Materials Project database (MP-ID: mp-3341936, 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

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_MgCr3Tc3P4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.34268561
_cell_length_b   7.34243871
_cell_length_c   3.24693234
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00550589
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgCr3Tc3P4
_chemical_formula_sum   'Mg1 Cr3 Tc3 P4'
_cell_volume   151.59156519
_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
  Mg  Mg0  1  0.99998746  0.00001308  0.00000000  1.0
  Cr  Cr1  1  0.53820333  0.07642650  0.00000000  1.0
  Cr  Cr2  1  0.92356986  0.46180380  0.00000000  1.0
  Cr  Cr3  1  0.53824860  0.46176102  0.00000000  1.0
  Tc  Tc4  1  0.19850600  0.80150888  0.50000000  1.0
  Tc  Tc5  1  0.19850002  0.39700686  0.50000000  1.0
  Tc  Tc6  1  0.60298888  0.80151249  0.50000000  1.0
  P  P7  1  0.82298362  0.17699350  0.50000000  1.0
  P  P8  1  0.35397978  0.17694676  0.50000000  1.0
  P  P9  1  0.33333594  0.66668170  0.00000000  1.0
  P  P10  1  0.82302949  0.64601240  0.50000000  1.0
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