Magnetoelectric coupling in multiferroics (magnetically ordered ferroelectrics) is a highly attractive area of research in solid-state physics. This interest stems not only from the intricate and diverse physical phenomena involved but also from the promising potential applications in technologies such as non-volatile memory devices, spin filters controlled by electric fields, and magnetoelectric sensors. In this work, we will focus on two main aspects: the dynamics of ferroelectric phase transitions, often driven by optical soft phonons, and the origins of static magnetoelectric coupling (i.e., changes in static magnetization induced by an electric field) in various multiferroic materials via THz, IR, and Raman spectroscopy. In addition, this presentation will also give a brief overview about the previous research topics (theoretical simulations of ferroelectrics, and nanomaterials for gas sensors).
The seminar will be chaired by Hynek Němec, Department of Dielectrics.