Cell and atoms, Transitional, Electronic energy gap, Tetragonal

• K-Nb-O
• Nb-O-P
• O-Sr-Ti
• La-Mn-O-Sr
• Ba-Ca-Cu-O-Tl
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• transitional
• disordered
• chalcogen
• rare earth