Alkaline, Lanthanoid, Ba-Eu, Hexagonal

• Al-Ba-Eu-Mg-O
• Ba-Eu-O-Ru
• Ba-Cl-Eu-O-P
• Ba-Eu-Ir-O-Ru
• Al-Ba-Eu-N-O-Si-Y
• optical properties
• luminescence
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• lanthanoid
• rare earth
• alkaline
• chalcogen
• nonmetal