Chalcogen, Lanthanoid, Eu-W, Orthorhombic

• Eu-Na-O-Pb-Ta-Ti-W
• Eu-Na-Nb-O-Pb-Ti-W
• Eu-Na-O-P-W-Y
• Bi-Eu-O-W
• Ag-Eu-O-W
• electronic and electrical properties
• thermal and thermodynamic properties
• permittivity (dielectric constant)
• optical properties
• structural properties
• rare earth
• transitional
• lanthanoid
• chalcogen
• oxide