Ho₂Ge₂O₇ is a holmium germanate ceramic compound belonging to the rare-earth oxide family, synthesized for advanced materials research rather than established commercial production. This material is primarily of interest in high-temperature applications and solid-state chemistry research, where rare-earth germanates are explored for their potential in thermal barrier coatings, solid electrolytes, and nuclear waste immobilization. Engineers would consider this compound in specialized contexts where the thermal stability and chemical inertness of rare-earth ceramics offer advantages over conventional oxides, though it remains largely in the development phase with limited industrial adoption compared to established rare-earth and germanium-based ceramics.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.849 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.221 | eV | DFT · OptB88vdW | ||
| ↳ | 4.823 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 4.456 | - | DFT · OptB88vdW | ||
| ↳ | 3.057 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000710 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00133 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -101.7 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 443.1 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.828 | 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