Lu2MgS4 is a ternary ceramic sulfide compound combining lutetium, magnesium, and sulfur, belonging to the thiospinel or related sulfide ceramic family. This material is primarily of research interest rather than established in high-volume industrial production, with potential applications in solid-state ionic conductors, optical materials, and specialized structural ceramics where sulfide-based chemistry offers advantages over traditional oxides. Engineers would consider this compound for niche applications requiring sulfide ceramic properties—such as enhanced ionic conductivity at moderate temperatures, specific refractive index characteristics, or chemical stability in reducing or sulfur-containing environments where oxide ceramics would degrade.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 70.63 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3300 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 28.52 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.095 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.029 | eV | DFT · OptB88vdW | ||
| ↳ | 2.972 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 5.888 | - | DFT · OptB88vdW | ||
| ↳ | 4.730 | - | DFT · TBmBJ | ||
Electron Effective Mass(m*e) | 0.4000 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 1.380 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000724 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00201 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -126.1 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 320.8 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 5.010 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.067 | 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