Condensed Matter Physics 2 (CMP2)

Skills
The student should be able to:

• describe how and why electrons couple to external fields.
• describe and distinguish different forms of atomic magnetism.
• understand the basics of mean-field theory, Landau models, and apply it to concrete models.
• describe the different types of magnetically ordered structures.
• derive the magnetic excitations of ordered moments.
• explain the basic properties of superconductivity.
• describe the foundation and consequences of Ginzburg-Landay theory.

Knowledge
Initially we study atomic physics and the coupling of atoms to external fields. Then, including interactions the exchange mechanism is introduced, and we will study the different faces of magnetism, and apply mean-field theory in terms of both Landau models and microscopic models. We will use this to study the general properties of phase transitions in solid systems and briefly touch of the concepts of universality and critical phenomena. Also we will study the breakdown of mean-field theory and the role of fluctuations. Then we will introduce superconductivity and study this fascinating quantum state by phenomenological models. This will allow us to study for example flux quantization, Josephson junctions, and vortex lattices.

Competencies
This course will provide the students with a competent background for further studies within the research field of condensed matter physics, including both theoretical and experimental M.Sc. projects at the local condensed matter groups. The general calculation skills acquired during the course will help the students in following more advanced courses and more readily attack future research projects.