Magnetic Susceptibility: Basics and Applications

This lecture covers the relationship between magnetization and magnetic field strength, the concept of magnetic induction field, and the role of magnetic constants in defining magnetic properties. It also delves into the behavior of materials in magnetic fields, the intrinsic spin angular momentum of electrons, and the effects of spin degeneracy. The instructor explains the principles of susceptibility, paramagnetism, and diamagnetism, as well as the factors influencing the magnetic behavior of materials. The lecture concludes with a discussion on the energy levels of atoms in magnetic fields and the application of perturbation theory to analyze the behavior of electrons in different energy states.