FePt — Properties & Data | MatWorld

FePt

Name: FePt
Brand: MatWorld

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	201.2	GPa	DFT
↳	196.5	GPa	DFT · OptB88vdW
↳	201.2	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.6855	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2600	-	DFT · OptB88vdW
↳	0.3009	-	DFT · PBE
Shear Modulus(G)3 entries	92.39	GPa	DFT
↳	116.4	GPa	DFT · OptB88vdW
↳	92.39	GPa	DFT · PBE

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, or test environment.

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Property	Value	Unit	Conditions	Source
Density(ρ)	14.91	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	3.243	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000834	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000793	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	3.233	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	3.340	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.1982	eV/atom	DFT · OptB88vdW
↳	-0.2384	eV/atom	Measured

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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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.

FePt

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