Rare earth, Zych

• Ce-O-Sm-Y
• Ce-O-Sm
• Ce-La-O-Sm
• Al-Lu-O-Pr
• Al-Ce-Lu-O
• electronic and electrical properties
• structural properties
• conductivity or resistivity
• optical properties
• luminescence
• rare earth
• chalcogen
• lanthanoid
• transitional
• quaternary
• cubic
• orthorhombic