SmFeAsO — Properties & Data | MatWorld

SmFeAsO

ceramic

· JVASP-91929· SmFeAsO

SmFeAsO is an iron-based oxypnictide ceramic compound belonging to the family of iron pnictide superconductors, specifically a rare-earth doped variant. This material is primarily a research compound studied for its superconducting properties at moderate critical temperatures, rather than a commodity engineering material in widespread industrial use. The oxypnictide class represents a significant discovery in superconductor science and is investigated as a potential platform for high-field applications, cryogenic systems, and fundamental condensed-matter studies where cost and processing complexity are secondary to performance.

superconductor researchcryogenic applicationshigh-field electromagnetscondensed-matter physicslaboratory instrumentationexperimental materials development

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	15,839.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	7,984.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2756	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000307	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000235	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.263	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-1.680	μV/K	DFT · OptB88vdW · p-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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00890	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.894	eV/atom	DFT · OptB88vdW

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

Regulatory Screening

Environmental

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.

SmFeAsO

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental