Understanding superconductivity in strongly correlated materials remains a major challenge in condensed matter physics. Two-dimensional materials promise unique insights into this problem, owing to the reduced dimension and their highly tunable phase diagrams. In this talk, I will present efforts to achieve rich correlated electronic states and superconductivity in atomically thin van der Waals(vdW) materials. In particular, I will discuss a case in the narrow electronic band of twisted bilayer graphene. By probing entropy and magnetic moment, our experiment discovered an isospin Pomeranchuk effect in which a symmetry-breaking phase appears with increasing temperature. Finally, I will discuss future prospects of studying correlated electronic states and superconductivity in vdW materials.
As part of the lecture, there will be a teaching rehearsal on the subject of
"Perfect conductors vs. superconductors".
