Advanced Solid State Physics

Magnetism

Diamagnetism, paramagnetism, ferromagnetism, ferrimagnetism, and antiferromagnetism will be discussed. These are described in the magnetism chapters of Kittel (chapters 11 and 12) and chapter 12 of festkörperphysik by R. Gross und A. Marx. Kittel describes magnetism mostly phenomenologically. He gives formulas for magnetic properties without deriving them rigorously. We will consider diamagnetism and paramagnetism using statistical physics similar to the discussion in Gross and Marx. To describe ferromagnetism, ferrimagnetism, or antiferromagnetism we will have to include exchange which arises from the Pauli exclusion principle and the Coulomb interaction between the electrons.

• Magnetism
• Diamagnetism
• Paramagnetism
• Ferromagnetism
• Ferrimagnetism
• Antiferromagnetism
• Magnetic domains

Reading
Kittel (chapters 11 and 12) or R. Gross und A. Marx, 12. Magnetismus

Resources
• A nice historical overview is given in John H. van Vleck's Nobel lecture. Quantum Mechanics - The Key to Understanding Magnetism, John H. van Vleck, Nobel Prize 1977.
• 12. Magnetismus, R. Gross und A. Marx
• The Theory of Electrons and the Propagation of Light, Hendrik A. Lorentz, Nobel Prize 1902.
• Light Radiation in a Magnetic Field, Pieter Zeeman, Nobel Prize 1902.
• The Origin, the Development and the Future of Spintronics, Albert Fert, Nobel Prize 2007.
• From Spinwaves to Giant Magnetoresistance (GMR) and Beyond, Peter Grünberg, Nobel Prize 2007.