Inaugural lecture by adjunct associate professor Henrik Jacobsen

Abstract: I have used neutron scattering for 15 years to understand the behaviour of materials, with a focus on magnetism. In this talk, I will present three highlights from this research, starting with a brief introduction to neutron scattering.

The first highlight is a magnetically frustrated system, in which long range order is suppressed. In its place, we found an exotic type of order by some quite challenging neutron experiments.

The second highlight is a material that undergoes a transition from being a metal to being insulating simultaneously with the onset of magnetism. We used neutrons to understand both the structure and magnetism, and how they impact the transition.

The final and most recent work involves a material which has a large anomalous Hall effect at room temperature, making it an interesting candidate for use in next generation computers. I will show how we have used neutrons to understand the magnetic structure, which is the cause of Hall effect in this material. Finally, I will look towards the future.

I will present some new projects, and also talk about the European Spallation Source, which is a neutron scattering facitility that is nearly ready to start operating in Lund.