Probing 2D Magnetic Materials with Magnetotransport by Prof Alberto Morpurgo

Join us at this talk by Prof Alberto Morpurgo from the University of Geneva. This talk is organised as part of the IAS Frontiers Seminars: Quantum Horizons, jointly supported by the Institute of Advanced Studies (IAS) and School of Physical and Mathematical Sciences (SPMS).

About the talk

The ability to exfoliate van der Waals crystals of magnetic compounds is giving access to a vast, unexplored family of two-dimensional magnetic materials, with a variety of different magnetic ground states. Most of these compounds are semiconductors that offer –besides the possibility to explore magnetism in highly controlled 2D crystals— a  new playground to combine magnetic and semiconducting functionalities. In this talk I will discuss how magnetotransport experiments allow the investigation the magnetic phase diagram of 2D magnetic material down to the ultimate limit of individual monolayers, to reveal phenomena that are difficult –or cannot—be accessed with other existing experimental techniques. After a short introduction, in my talk I will discuss vey recent experiments on field effect transistors realized on exfoliated crystals of CrPS₄ –ranging from relatively thick multilayers, to double-gated bilayers, and to individual monolayers– and discuss results that illustrate the wealth of physical phenomena that become accessible with these systems. 

About the speaker

Alberto Morpurgo is a condensed matter physicist, with a broad interest in the electronic properties of materials and devices. He received his PhD in 1998 from the University of Groningen (the Netherlands) for his thesis on mescocopic physics, for which he also received the Miedema Prize 1998 for the best Dutch PhD thesis. After a postdoctoral stay at Stanford University, Alberto Morpurgo moved to Delft University, where he became associate professor. In 2008, Alberto Morpurgo moved to University of Geneva, Switzerland, as full professor. The research of Prof. Morpurgo has covered a broad variety of material systems (III-V heterostructures, carbon nanotubes, superconductors, organic semiconductors, topological insulators) and physics problems (superconductivity, phase coherent transport, semiconductor physics, electron-electron interaction effects, magnetism etc.). Since the original discovery of graphene, Prof. Morpurgo has been working with increasing intensity in the field of 2D materials and heterostructures.