Physics of two-dimensional van der Waals halides

Magnetic van der Waals (vdW) materials represents a fascinating field of condensed matter physics. In this project we will focus on trihalides of transition metals in single crystal form. Although strong application potential of vdW materials is expected, understanding of bulk magnetic properties of trihalides is inconsistent, in many cases there is no consensus about crystal structure which reveals signatures of dimorphism. The project combines experiences with preparation of trihalides of transition metals, various X-ray, microscopic and macroscopic methods for characterization of properties of single crystals in wide scale of temperatures, magnetic fields and pressures. Selected representative compounds will be studied by neutron diffraction and muon spin resonance to understand magnetic structure at microscopic level. Suggested combination of experimental techniques supported by theoretical models will provide complex information about relation between magnetic behavior in the context of inter- and intra-layer magnetic interactions and coupling with crystal structure.