FePt is an iron-platinum intermetallic compound notable for its extremely high magnetic anisotropy and strong permanent magnetic properties in the L1₀ ordered phase. It is used primarily in magnetic recording media, permanent magnets for high-temperature applications, and emerging microelectromagnetic devices where compact, thermally stable magnetic performance is critical. Engineers select FePt over conventional ferrites or NdFeB magnets when applications demand exceptional coercivity, high-temperature stability, or integration into thin-film or nanostructured devices, though processing and cost considerations typically limit it to specialized applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 201.2 | GPa | — | ||
| ↳ | 201.2 | GPa | — | ||
| ↳ | 196.5 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.6855 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.3009 | - | — | ||
| ↳ | 0.2600 | - | — | ||
Shear Modulus(G)3 entries | 92.39 | GPa | — | ||
| ↳ | 92.39 | GPa | — | ||
| ↳ | 116.4 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 14.91 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 3.243 | µB | — | ||
Seebeck Coefficient(S) | 3.340 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.2384 | eV/atom | — | ||
| ↳ | -0.1982 | eV/atom | — |