Abstract

Materials with heavy quasi-particles have rich phase diagrams with superconducting phases appearing next to ordered magnetic ones, as well as in close proximity to non-Fermi liquid behaviour and quantum criticality. The large effective masses in these materials enhance electron interactions, creating opportunities to develop unconventional phases of matter, such as superconductivity with complex order parameters, or phase transitions driven by Kondo physics. In this mini-colloquium at the CMD32 conference, we will highlight recent advances on establishing the underlying mechanisms driving such emergent behaviour in heavy fermion systems. Motivated by recent studies on the nature of the superconducting order parameter in Uranium and Cerium-based superconductors, this
mini-colloquium will create a platform to discuss both experimental evidence and theoretical modelling in heavy-fermion materials. By linking measurements with theoretical investigations, this session aims at establishing a deeper understanding of emergent electron states and stimulate new directions for research in heavy fermion compounds.

Organizers