Effective mass, Er, Rare earth

• As-Er
• Er-Ni-Si
• Co-Er-Si
• Er-Ga-Ni
• B-Er-Ni
• electrical conductivity
• effective mass of electrons
• effective mass of electrons to holes ratio
• rare earth
• lanthanoid
• transitional
• non-disordered
• orthorhombic
• cubic
• hexagonal
• tetragonal
• monoclinic