MgAs4

ceramic

· MgAs4

MgAs₄ is a magnesium arsenide ceramic compound belonging to the family of III-V and II-VI semiconductor ceramics. This material is primarily of research and developmental interest rather than established in high-volume industrial production, with potential applications in optoelectronic devices, high-frequency electronics, and specialized semiconductor applications where its crystalline structure and electrical properties may offer advantages in niche markets.

semiconductor researchoptoelectronic deviceshigh-frequency electronicscompound semiconductor developmentphotovoltaic researchexperimental materials

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Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	6,270	ksi	DFT
↳	6,796.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	3,654.3	ksi	DFT
↳	4,036.4	ksi	DFT · OptB88vdW

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
Density(ρ)	0.1632	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.8400	eV	DFT · OptB88vdW
↳	1.382	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	18.64	-	DFT · OptB88vdW
↳	17.43	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	14.94	-	DFT · OptB88vdW
↳	10.48	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.527	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8367	me	DFT · OptB88vdW · 27°C
Piezoelectric Modulus(eij)	0.1114	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00155	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00175	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-282.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	278.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.88	%	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)	-0.2467	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.

MgAs4 — Properties & Data | MatWorld

MgAs4

Mechanical Properties

Physical Properties

Electrical Properties

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