Physics & Astronomy Colloquium

Friday, October 07, 2022 - 3:00pm to 4:00pm

DeMeritt Hall - Rm. 240


Speaker

Stephen Carr, Brown University ( Host: Shawna Hollen)

Title: 

Designing crystals with twistronics

Abstract: 

When similar 2D materials are stacked on top of one another with slight misalignment, a moiré pattern creates periodic variations in the interlayer electronic coupling. The variations can localize electronic states, promoting non-linear effects and strongly correlated phases. In this talk the microscopic origins of electronic moiré potentials will be examined alongside the wide ranging possibilities for the electronic states they produce. This includes expanding beyond two layer systems, combining multiple distinct materials, and tuning the electronic and atomic structure of moire interfaces with external perturbations. Moiré patterns are probing long-standing questions in condensed matter physics and could serve as ideal platforms for quantum or topological electronics.

 

Please contact Michelle.Mancini@unh.edu for zoom link. ceps-phys 

Contact Info
Mancini, Michelle