Engineered heterostructures as tunable platforms for novel quantum phases

25.11.2025 13:00 – 15:00

Using different materials as Lego-brick-like building blocks is an exciting avenue of condensed matter physics that has been shown to unlock exotic quantum phenomena which do not appear in the individual constituent materials. For instance, two-dimensional electron gases can form at interfaces between two different oxide insulators, which display superconductivity at low temperatures. More recently, twisted heterostructures built from van der Waals materials, such as graphene or transition metal dichalcogenides, have also displayed a remarkable set of strongly correlated phenomena, such as interaction-induced insulating and superconducting states, intertwined with non-trivial topology and quantum geometry. Even more recently, it was discovered that similar phenomenology can also be observed in rhombohedral stacks of graphene. In this talk, I will give an introduction to the rich set of possibilities provided by such engineered heterostructures and illustrate their complex physics, tunability, and the unique ways of probing their physics. To this end, I will discuss a few examples from our recent research in this field, which will involve a combination of analytical and numerical projects, machine learning, as well as experimental collaborations.

Lieu

Bâtiment: Ecole de Physique

Auditoire Stückelberg

entrée libre