Show Magnetic materials
| ID | 28 |
|---|---|
| Symbol | Fe<sub>3</sub>O<sub>4</sub> |
| Image |
|
| Name | Magnetite |
| Categories | Oxides with antiferromagnetic interactions |
| Density (g/cm<sup>3</sup>) | 5.195 |
| Structure | H<sub>11</sub> spinel (MgAl<sub>2</sub>O<sub>4</sub>) |
| Order | Ferrimagnet |
| Curie temperature (K) | 856 |
| Cubic lattice parameter (p<sub>m</sub>) (a<sub>0</sub>) | 839.7 |
| Magnet ideality factor (p<sub>m</sub>) (a) | |
| Resistivity (μΩ·m) (ρ) | |
| Magnetic moment per unit mass (A m<sup>2</sup> kg<sup>-1</sup>) (σ) | 92 |
| Exchange stiffness (pJ m<sup>-1</sup>) (A) | 7 |
| Magnetic hardness parameter (κ) | 0.21 |
| Spontaneous magnetization (MA m<sup>-1</sup>) M<sub>s</sub>) | 0.48 |
| Spontaneous linear magnetostriction (λ<sub>s</sub>) | 40 × 10<sup>−6</sup> |
| Anisotropy constants (KJ m<sup>-3</sup>) (K1) | −13 |
| Magnetic polarization (T) (J<sub>s</sub>) | 0.60 |
| Image Source | https://www.researchgate.net/figure/Crystal-structures-and-spin-configurations-of-a-magnetite-Fe3O4-and-b-maghemite_fig4_310728565 |