ErAgTe2 — Properties & Data | MatWorld

ErAgTe2

metal

· ErAgTe2

ErAgTe2 is an intermetallic compound combining erbium, silver, and tellurium, belonging to the rare-earth metal chalcogenide family. This is a research-phase material studied primarily for its electronic and thermal properties in solid-state applications. The compound is of interest in thermoelectric device development and semiconductor research, where rare-earth tellurides are explored as potential alternatives to conventional thermoelectric materials for waste-heat recovery and thermal management at elevated temperatures.

thermoelectric deviceswaste heat recoverysolid-state coolingsemiconductor researchhigh-temperature thermal managementmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	46.28	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	24.15	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.597	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.8970	eV	DFT · OptB88vdW
↳	1.281	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	20.63	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.86	-	DFT · OptB88vdW
↳	9.477	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.003	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.4467	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.2595	C/m²	DFT · OptB88vdW
↳	0.1664	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00166	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00181	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-204.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	195.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.22	%	DFT · TBmBJ

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)	-0.9115	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

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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.

ErAgTe2

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