Electronic and electrical properties, Er-Sr, Rare earth, Transitional

• Er-Nb-O-Sr
• Co-Er-O-Sr
• Er-O-Ru-Sr
• Er-Ga-Mn-O-Sr
• Bi-Cu-Er-O-Sr
• conductivity or resistivity
• electrical conductivity
• effective mass
• electrical resistivity
• electronic energy gap
• transitional
• lanthanoid
• alkaline
• rare earth
• chalcogen
• tetragonal
• monoclinic
• orthorhombic
• cubic
• trigonal