Hosted by Jie Shan

Engineering van der Waals Heterostructures With a Twist

Layered van der Waals materials, such as graphene, boron nitride and the transition metal dichalcogenides host a wide range of electronic properties spanning single-particle, correlated many body and topological phenomenon. The ability to isolate  individual monolayer crystals  and then mechanically layer them one on  top of another to form entirely new  heterostructures has therefore resulted in an exciting new  paradigm in materials engineering where wildly different material properties can be mixed and matched virtually at will.  Moreover, the capability to radically alter how the layers interact with each other by varying their rotational order provides a fundamentally new degree of freedom that has not been available in conventional systems. In this talk I will review some of the dramatic consequences that can result from manipulating this rotational order including opportunities to engineer strongly interacting flat bands that host correlated electronic states as well as dynamic control over the lattice symmetry of the composite heterostructure

Poster