Sm3Sb5O12 — Properties & Data | MatWorld

Sm3Sb5O12

ceramic

· JVASP-20848· Sm3Sb5O12

Sm₃Sb₅O₁₂ is an inorganic ceramic compound containing samarium, antimony, and oxygen, representing a mixed-valence oxide system within the rare-earth pyrochlore or related crystal family. This material is primarily of research interest for its potential in electronic and photonic applications, including ionic conductivity for solid electrolytes and optical or magnetic functionality, though industrial deployment remains limited. Engineers considering this compound should recognize it as an exploratory material rather than an established engineering ceramic; its selection would typically be driven by specific electrochemical, thermal, or functional property requirements in laboratory or prototype-stage development rather than high-volume production.

solid-state electrolytesionic conductorsrare-earth ceramics researchthermal barrier coatings (experimental)photonic device substratesfunctional ceramics development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.284	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	3.171	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.127	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000645	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000544	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-346.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	373.4	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.377	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.

Sm3Sb5O12

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental