Magnetism and Optical Properties

This lecture covers the concepts of magnetism, including ferromagnetism, paramagnetism, and diamagnetism, as well as the behavior of materials in magnetic fields. It also discusses the optical properties of materials, such as electronic and vibrational absorption, reflection, and refraction, with a focus on metals. The theoretical framework of quantum mechanics and the interaction of light with matter are explored, emphasizing the particle-wave duality of light and the transfer of electrons in metals.