Topological crystals in two-dimensional materials
Date :
Thursday, May 21st, 2026 10:30 am - 11:30 am
Place :
Seminar Room 5 (A615), 6th Floor, ISSP
Lecturer : Tomohiro Soejima Affiliation : New York University And The Flatiron institute Committee Chair : Takeo KatoLanguage in Speech : English
A large Berry curvature prevalent in graphene multilayer systems can combine with strong interaction to create a new phase of matter: topological electron crystals. These crystals carry nonlocal topology and Hall response, challenging our intuition that electron crystals consist of semiclassically localized particles. In this talk, I will survey some of the unusual properties of these crystals, and discuss model Hamiltonians that shed light on the mechanism behind these crystals.
(Published on: Wednesday April 22nd, 2026)