Chalcogen, Disordered, Rare earth, Electronic energy gap, Trigonal

• Co-La-O
• La-Mn-O-Sr
• Ba-La-Mn-O
• Ba-Eu-N-O-Si
• Al-N-Nd-O-Si
• values of electronic energy gap
• polaron formation energy
• thermal energy gap
• energy gap for direct transition
• energy gap for indirect transition
• rare earth
• disordered
• chalcogen
• lanthanoid