Sprecher: Philipp Gegenwart
Institut für Physik, Universität Augsburg
Titel: New quantum states driven by magnetic frustration
Frustration appears in many contexts – in magnets, its connotations are truly positive since it hinders conventional order and triggers new phenomena, giving researchers the opportunity to devise novel quantum states and even design them experimentally. Among the most sought after frustrated magnetic states are quantum spin liquids. They host fractionalized excitations and non-trivial entanglement, promising great applications for quantum communication and computation. In the talk, I will discuss recent experimental efforts to realize Anderson’s resonating valence bonds in triangular rare-earth magnets, Kitaev’s honeycomb lattice model in iridates, as well as the fractionalized Fermi liquid in Kondo lattices.