ErAs

ceramic

· JVASP-36037· ErAs

ErAs is a ceramic compound combining erbium and arsenic, belonging to the rare-earth arsenide family. This material is primarily of research and specialized industrial interest, valued for semiconductor and optoelectronic applications where rare-earth compounds enable unique electronic and thermal properties. ErAs is notable in thermoelectric devices and infrared detector systems, where its lattice properties support efficient phonon scattering and thermal management at operating temperatures where conventional semiconductors fall short.

thermoelectric modulesinfrared detectorssemiconductor researchhigh-temperature electronicsthermal management systemsoptoelectronic devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	83.23	GPa	—
Poisson's Ratio(ν)	0.2200	-	—
Shear Modulus(G)	61.40	GPa	—

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

Property	Value	Unit	Conditions	Source
Density(ρ)	9.098	kg/m³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	5.760	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5171	eV/atom	—
Formation Energy(ΔHf)	-1.056	eV/atom	—

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

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.

ErAs

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental