Quantum oscillation measurements in strongly correlated electron systems

Stephen Julian

University of Toronto 

Quantum oscillation measurements such as the de Haas van Alphen effect have made an enormous contribution to our understanding of strongly correlated electron systems. They allow us, in crystals of sufficient purity, to measure in a Fermi-surface-specific way the detailed toplogy of the Fermi surface, the many-body mass enhancements, and many-body enhancements of the susceptibility. They also allow, in principle, the observation of non-Fermi-liquid effects.

In this lecture I will describe the experimental methods employed, and the information that can be extracted from quantum oscillation measurements, as well as giving some relevant examples from heavy fermion and metallic oxide systems.