Dr. Julien Barrier

ICFO - The Institute of Photonic Sciences, Spain
Dr Julien Barrier’s research activities focus on understanding electronic transport phenomena in moiré systems and van der Waals heterostructures. At the University of Manchester, he studied superlattices exposed to high magnetic fields, in which commensuration between the lattice period and the magnetic length lead to the observation of Brown-Zak fermions. Recently, he studied Josephson junctions incorporating domain walls of minimally twisted bilayer graphene, demonstrating that a supercurrent can persist under extremely high magnetic fields in ballistic 1D channels. He currently performs photoconductivity experiments in moiré materials to study their band topology.