Visualizing Correlated and Topological Quantum Phases of Matter
November 22nd, 2019 BERTHOLD JÄCK Princeton University

Electronic correlations and a non-trivial bulk topology often determine the electronic properties of quantum phases of matter and leave distinct electronic fingerprints that can be detected with scanning tunneling microscopy (STM). In this talk, I will first describe a series of experiments that demonstrate how the combined influence of magnetism and superconductivity on the onedimensional topological hinge state of bismuth gives rise to a Majorana zero mode. Second, I will discuss the unusual spectroscopic characteristics of the flat bands of magic angle twisted bilayer graphene in STM experiments and demonstrate the significant impact of local electronic correlations on the electronic properties of that material.

Seminar, November 22, 2019, 16:00. ICFO’s Seminar Room

Hosted by Prof. Dmitri Efetov