Speaker: Dr. Mei-Yin Chou - Institute of Atomic and Molecular Sciences, Academia Sinica, Taiwan
Host: Prof. Uzi Landman
Title: Moiré Physics in Graphene Layers – What’s the “Magic”?
Abstract: The unexpected discovery of superconductivity and strong electron correlation in twisted bilayer graphene, a system composed solely of 𝑠-𝑝 electrons, stands as one of the most intriguing developments in two-dimensional materials in recent years. A key feature of this system is the emergence of flat energy bands near the Fermi level (a condition that promotes the formation of novel many-body phases) at the so-called “magic angles.” Gaining a deeper understanding of the physical origin of these flat bands is essential for constructing an effective theory of unconventional electron correlation. In this talk, I will present our recent theory on the origin of these magic angles in twisted graphene layers and their connection to the Fermi ring in AA-stacked multilayer graphene.
Event Details
Date/Time:
-
Date:Friday, January 31, 2025 - 2:30pm to 3:30pm
Location:
Marcus Nanotechnology Building - Rooms 1117-1118
