A quaternary intermetallic compound of Fe-Co-Mn with controlled interstitial nitrogen content, forming a tetragonal or closely related phase, can achieve enhanced uniaxial magnetic anisotropy and a Curie temperature approaching 600 K, provided that compositional adjustments or structural modifications are made to improve thermodynamic and dynamic stability. This approach may yield a rare-earth-free permanent magnet with high magnetic density and improved coercivity once stability is optimized.
Property | Value |
|---|---|
composition | Mn2CrFe4Co4N |
space group | 1 |
score | 0.740 |
generation method | multiple_mutations |
number of trials | 20 |
Crystal structure for Mn2CrFe4Co4N | Space group: 1 (resolved from structure) | Number of atoms: 12 | Generated: 2025-09-16 08:01:18
Property | Value |
|---|---|
curie_temperature | 611.78 |
magnetic_density | 0.137038 |
cost | 13.41 |
e_hull | 0.235068 |
dynamic_stability | True |
- The combination of Mn, Cr, Fe, Co, and N in this stoichiometry yields a high Curie temperature and magnetic density. - The material is dynamically stable, which supports its structural integrity. - The energy above hull suggests that the material is metastable or unstable thermodynamically. - Cost is low, indicating practical feasibility from an economic standpoint.
Phase diagram of Mn2CrFe4Co4N; e_above_hull: 0.235068 eV/atom; predicted_stable: False
Interactive visualization showing the evolution of 952 structural frames during the mutation process.
Standalone, embeddable HTML with MatterViz Trajectory viewer
iteration | composition | sg | method | score |
|---|---|---|---|---|
0 | Fe4Co4Mn3N1 | 1 | from_scratch | 0.59089 |
1 | Mn2CrFe4Co4N | 1 | multiple_mutations | 0.739885 |
2 | Fe4Co4Mn3Cr2N1 | 8 | from_scratch | 0.7346423333333333 |
3 | Mn2VFe4Co4N | 1 | multiple_mutations | 0.6962800000000001 |
4 | Fe4Co4Mn3V2N | 1 | from_scratch | 0.5102133333333334 |
5 | TiMn2Fe4Co4N | 1 | multiple_mutations | 0.739615 |
6 | Fe4Co4Mn3Ti1N | 6 | from_scratch | 0.5876916666666667 |
7 | Fe4Co4Mn3Ti2N1 | 1 | from_scratch | 0.7344783333333335 |
8 | Fe4Co4Mn2Ti2N | 1 | from_scratch | 0.7365216666666666 |
9 | Fe4Co4Mn3Ti1N4 | 1 | from_scratch | 0.6988186666666667 |
10 | TiMn2Fe4Co4N | 1 | multiple_mutations | 0.739615 |
11 | Ti2Mn2Fe4Co4N | 1 | from_scratch | 0.7232156666666667 |
12 | Ti2Mn2Fe4Co4N | 6 | from_scratch | 0.7365216666666666 |
13 | Ti1Mn2Fe4Co4N1 | 99 | from_scratch | 0.589615 |
14 | Ti2Mn2Fe4Co4N | 1 | from_scratch | 0.7365216666666666 |
15 | Ti1Mn2Fe4Co4N1 | 1 | from_scratch | 0.739615 |
16 | Ti2Mn3Fe4Co4N | 6 | from_scratch | 0.7156863333333334 |
17 | Ti1Mn2Fe4Co4N1 | 1 | from_scratch | 0.739615 |
18 | Ti1Mn2Fe4Co4N1 | 6 | from_scratch | 0.589615 |
19 | Ti1Mn2Fe4Co4N1 | 6 | from_scratch | 0.589615 |
AI-discovered magnetic material: Mn2CrFe4Co4N (performance score: 0.740) | Space group: 1 (resolved from structure) | Key properties: Tc: 612K, Ms: 0.14T, Cost: $13/kg, E_hull: 0.235eV/atom, Dynamically stable | Discovered in 20 AI iterations | - The combination of Mn, Cr, Fe, Co, and N in this stoichiometry yields a high Curie temperature and magnetic density.
- The material is dynamically stable, which supports its structural integrity.
- The energy above hull suggests that the material is metastable or unstable thermodynamically.
- Cost is low, indicating practical feasibility from an economic standpoint.