FePt
metal· FePt
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.
magnetic recording media and storagehigh-temperature permanent magnetsthin-film magnetic deviceselectromagnetic sensorsmicroelectromechanical systems (MEMS)research nanostructured magnets
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| 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 | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 14.91 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 3.243 | µB | — | ||
Seebeck Coefficient(S) | 3.340 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.