Electronic and electrical properties, Eu-x polyhedra, Tetragonal

• Ba-Cu-Eu-O
• Ce-Cu-Eu-O-Ru-Sr
• Cu-Eu-Si
• As-Eu-Fe
• Eu-Nb-O-Sr-Ti
• conductivity or resistivity
• electrical conductivity
• effective mass
• electronic energy gap
• values of electronic energy gap
• rare earth
• lanthanoid
• transitional
• disordered
• chalcogen