Chalcogen, Lanthanoid, Rare earth, Cubic, Electronic energy gap

• Eu-O
• Ce-O
• S-Sm
• Eu-Se
• Se-Te-Tm
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• thermal energy gap
• pressure derivative of energy gap
• rare earth
• lanthanoid
• chalcogen
• disordered