Basic Information
Formula
MnCoS
MP-ID
mp-1008876
Elements
3
Sites
3
Density
6.0211
g/cm³
Volume
40.25
ų
Cell a
3.8467
Å
Cell b
3.8467
Å
Cell c
3.8467
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
F-43m
Point Group
-43m
Crystal System
Cubic
Bravais Lattice
cF
Stability
No
Packing Fraction
0.7405
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 8)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 28.42 | 3.1408 | 56.2 | (1,1,1) |
| 32.93 | 2.7200 | 4.8 | (1,1,0) |
| 47.26 | 1.9233 | 100.0 | (2,1,1) |
| 56.07 | 1.6402 | 22.7 | (2,2,1) |
| 69.06 | 1.3600 | 14.6 | (2,2,0) |
| 76.30 | 1.2480 | 8.3 | (3,1,1) |
| 78.66 | 1.2164 | 1.2 | (3,2,1) |
| 87.94 | 1.1104 | 30.0 | (3,3,2) |
Energy Properties
Formation Energy/atom
-0.21197
eV/atom
Energy/atom
-7.02291
eV/atom
Energy above Hull
0.2862
eV/atom
Uncorrected Energy
-6.8553
eV/atom
Volume/atom
13.42
ų
c/a Ratio
1.0000
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
3.9991
μB
Mag. Ordering
FM
Mag. Sites
2
Magnetization/Volume
0.099360
μB/ų
Elastic Properties
KVRH
133.924
GPa
GVRH
13.263
GPa
Young's Modulus E
38.517
GPa
Poisson Ratio ν
0.452
Pugh Ratio K/G
10.098
Vickers Hardness Est.
-
GPa
Ductility
Brittle
Anisotropy
0.594
Lame λ
125.082
GPa
Feature Analysis
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Mn · 0.333
Element Family
3d-TM
Solute Fraction
0.667
Interstitial Fraction
0.000
Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0986
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.1339
J/mol·K
Ω Parameter
0.8057
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
9.188%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4294
smaller = more stable mixing
VEC
7.333
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-13.889
kJ/mol; negative = exothermic mixing
Entropy Norm
1.0000
SS Former
0
Phase Tendency
IM
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1008876
Reference Citation
The crystal structure and related material properties of MnCoS were obtained from the Materials Project database (MP-ID: mp-1008876, 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_MnCoS
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 3.84666089
_cell_length_b 3.84666089
_cell_length_c 3.84666089
_cell_angle_alpha 60.00000000
_cell_angle_beta 60.00000000
_cell_angle_gamma 60.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural MnCoS
_chemical_formula_sum 'Mn1 Co1 S1'
_cell_volume 40.24729600
_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 0.00000000 0.00000000 0.00000000 1.0
Co Co1 1 0.25000000 0.25000000 0.25000000 1.0
S S2 1 0.50000000 0.50000000 0.50000000 1.0
