Electronic and electrical properties, Er-Mn-O, Er-x polyhedra, Transitional

• Er-Ho-Mn-O
• Cu-Er-Mn-O
• Ca-Er-La-Mn-O
• Er-Fe-Mn-O
• permittivity (dielectric constant)
• conductivity or resistivity
• electrical conductivity
• effective mass
• transitional
• rare earth
• lanthanoid
• chalcogen
• oxide
• hexagonal
• orthorhombic
• cubic
• trigonal
• monoclinic