Quantum theory of magnetism

Introduction

Lecture 0. About the lecture course [slides]

Lecture 1. Introduction, Magnetic susceptibility; Dia-, para-, ferro- and antiferromagnetism [slides]

Lecture 2. Dia-, para-, ferro- and antiferromagnetism, dipole-dipole interaction, Bohr-van Leeuwen theorem [slides]


Magnetism of free ions

Lecture 3. Spin, orbital, and total moments. Hund's rules, spin-orbit coupling, atomic diamagnetism [slides]

Lecture 4. Atomic diamagnetism, Pascal constants, Van Vleck paramagnetism [slides]


Magnetism of ions in a crystal

Lecture 5. Spherical and cubic harmonics, crystal-field splitting in a nut shell, the Jahn-Teller effect [slides]

Lecture 6. Intra-atomic exchange interaction, spin-state transitions, orbital moment quenching [slides]