Na2AsAu — Properties & Data | MatWorld

Na2AsAu

metal

· Na2AsAu

Na2AsAu is an intermetallic compound combining sodium, arsenic, and gold in a defined stoichiometric ratio. This material belongs to the family of complex metallic alloys and intermetallics, which are primarily of research and exploratory interest rather than established industrial use. While the sodium-arsenic-gold system remains largely experimental, intermetallic compounds of this type are studied for potential applications in thermoelectric devices, specialized electronic components, and catalysis, where their unique crystal structures and electronic properties may offer advantages over conventional alloys.

intermetallic research compoundsthermoelectric device developmentexperimental catalytic materialselectronic materials researchphase diagram mapping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2104	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.4970	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	26.87	-	DFT · PBE
↳	15.44 range 12.01–18.88median of 2 measurements	-	DFT · PBEsol
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.4733	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.7367	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00204	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00392	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-124.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	281.2	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)	-0.5295	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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Na2AsAu

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