Apatite, Electronic energy gap

• La-O-Si-Sr
• Ge-La-Na-O
• Ca-F-O-V
• Ca-H-O-P
• F-O-Sr-V
• values of electronic energy gap
• energy gap for direct transition
• thermal energy gap
• energy gap for indirect transition
• spin-orbit splitting of valence band
• apatite
• chalcogen
• disordered
• alkaline
• hexagonal
• trigonal
• monoclinic
• triclinic
• orthorhombic