Europium (Eu) is a soft lanthanide rare-earth metal characterized by its high reactivity and unique magnetic and optical properties. It is primarily used in phosphors for display technologies, nuclear control applications, and specialty optical coatings where its luminescence and neutron-absorption characteristics provide critical functionality. Engineers select europium-based materials when standard transition metals cannot deliver the required magnetic susceptibility, photoluminescent output, or neutron economy—though its scarcity and cost restrict use to applications where performance justifies the premium.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 39.29 | GPa | — | ||
Poisson's Ratio(ν) | 0.2800 | - | — | ||
Shear Modulus(G) | 20.37 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.761 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.000370 | eV/atom | — |