1989, Activation energy, Chalcogen

• Co-Fe-O-Zn
• Cu-La-O
• Cu-O-W
• Na-O-S
• Cu-O
• values of activation energy
• donor energy
• impurity conduction
• activation energy for migration of vacancies
• chalcogen
• transitional
• conductor
• ternary
• disordered
• cubic
• orthorhombic
• monoclinic
• tetragonal
• triclinic