LiCaAs

ceramic

· LiCaAs

LiCaAs is an inorganic ceramic compound combining lithium, calcium, and arsenic—a quaternary ceramic material belonging to the mixed-metal arsenide family. While not widely established in mainstream industrial production, this material exists primarily in materials research and specialized compound semiconductor contexts, where it is investigated for potential applications in optoelectronic devices, solid-state physics studies, and high-frequency electronic components. Engineers would consider this compound when exploring advanced ceramic or semiconductor candidates for niche applications requiring specific electronic or thermal properties, though availability and manufacturing maturity are significantly limited compared to conventional engineering ceramics.

research semiconductorsoptoelectronic compoundsexperimental ceramicshigh-frequency electronicssolid-state physics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,695.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	2,790.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1003	lb/in³	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	1.883	eV	DFT · OptB88vdW
↳	2.440	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	10.35	-	DFT · OptB88vdW
↳	10.79	-	DFT · PBE
↳	8.585 range 6.717–10.45median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.270	-	DFT · OptB88vdW
↳	6.201	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.6500	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.090	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.03686	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00236	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00211	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-232.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	479.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	13.83	%	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)	-1.061	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.

LiCaAs — Properties & Data | MatWorld

LiCaAs

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental