Electronic and electrical properties, Er-Si, Er-x polyhedra, Rare earth

• Er-Pd-Si
• Cu-Er-Si
• Co-Er-Si
• Er-Rh-Si
• effective mass
• electrical conductivity
• electronic energy gap
• values of electronic energy gap
• conductivity or resistivity
• rare earth
• lanthanoid
• metalloid
• non-disordered
• silicide
• hexagonal
• tetragonal
• monoclinic
• orthorhombic
• cubic