PmBr₃ (promethium tribromide) is an ionic ceramic compound composed of the rare-earth element promethium and bromine, belonging to the lanthanide halide family. This material is primarily of research and specialized nuclear engineering interest rather than high-volume industrial production, given promethium's radioactive nature and scarcity. Applications are largely confined to nuclear science, radiation shielding studies, and fundamental materials research exploring rare-earth halide properties.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 14.56 | GPa | DFT · OptB88vdW | ||
Shear Modulus(G) | 5.170 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.166 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.414 | eV | DFT · OptB88vdW | ||
| ↳ | 3.844 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 10.23 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 3.854 | - | DFT · OptB88vdW | ||
| ↳ | 3.261 | - | DFT · TBmBJ | ||
Electron Effective Mass(m*e) | 1.110 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 2.390 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00118 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00143 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -184.5 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 259.8 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.1800 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.846 | 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