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HEAS Data Platform · Materials Science Database

MP-ID: mp-999542 · Space group: P4/mmm (#123)

Basic Information

Formula
MnFe3
MP-ID
mp-999542
Elements
2
Sites
4
Density
8.0290
g/cm³
Volume
46.01
ų
Cell a
5.7386
Å
Cell b
2.8316
Å
Cell c
2.8316
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P4/mmm
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
tP
Stability
No
Packing Fraction
-

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 6)
2θd (Å)Ihkl
44.98 2.0154 100.0 (2,1,0)
45.29 2.0023 49.0 (0,1,1)
65.01 1.4346 7.5 (4,0,0)
65.98 1.4158 14.3 (0,2,0)
82.76 1.1662 14.3 (4,1,1)
83.43 1.1585 28.1 (2,2,1)
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Energy Properties

Formation Energy/atom
0.05122
eV/atom
Energy/atom
-8.59180
eV/atom
Energy above Hull
0.0512
eV/atom
Uncorrected Energy
-14.3638
eV/atom
Volume/atom
11.50
ų
c/a Ratio
0.4934

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
7.6687
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.166670
μB/ų

Elastic Properties

KVRH
195.980
GPa
GVRH
93.423
GPa
Young's Modulus E
241.841
GPa
Poisson Ratio ν
0.294
Pugh Ratio K/G
2.098
Vickers Hardness Est.
8.948
GPa
Ductility
Brittle
Anisotropy
1.389
Lame λ
133.698
GPa

Feature Analysis

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Fe · 0.750
Element Family
3d-TM
Solute Fraction
0.250
Interstitial Fraction
0.000
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.3890
Homogeneous Poisson ν
0.2940
Debye Temperature
502.0
K
Sound Velocity
3,807.4
m/s
Homogeneity
0.2940

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-999542
Reference Citation

The crystal structure and related material properties of MnFe3 were obtained from the Materials Project database (MP-ID: mp-999542, 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
Raw CIF Data
# generated using pymatgen
data_MnFe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.73854785
_cell_length_b   2.83160308
_cell_length_c   2.83160308
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnFe3
_chemical_formula_sum   'Mn1 Fe3'
_cell_volume   46.01153895
_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
  Mn  Mn0  1  0.75000000  0.50000000  0.50000000  1.0
  Fe  Fe1  1  0.99742274  0.00000000  0.00000000  1.0
  Fe  Fe2  1  0.50257726  0.00000000  0.00000000  1.0
  Fe  Fe3  1  0.25000000  0.50000000  0.50000000  1.0
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