LiFeAs₂O₇ is a lithium iron arsenate ceramic compound belonging to the family of mixed-metal oxides with potential electrochemical or structural applications. This is primarily a research-phase material; compounds in this family are investigated for energy storage systems (particularly lithium-ion battery cathodes and related electrochemical devices) and as functional ceramics where arsenic-containing phases may offer unique ionic conductivity or electronic properties. Engineers would consider materials of this class when conventional lithium transition-metal oxides reach performance limits, though commercial adoption remains limited and material availability is restricted to specialized research suppliers.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1480 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.6330 | eV | DFT · OptB88vdW | ||
Dielectric Constant (Relative Permittivity)(εr) | 205.3 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞) | 19.16 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 4.997 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.5548 | C/m² | DFT · OptB88vdW | ||
| ↳ | 1.750 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.03680 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.437 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data