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

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