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SYWH: Symposium Physics of van der Waals 2D heterostructures

SYWH 1: Physics of van der Waals 2D heterostructures

SYWH 1.1: Hauptvortrag

Mittwoch, 18. März 2020, 15:00–15:30, HSZ 02

Engineering 2D materials with a twist — •Cory Dean — Columbia University, New York, NY, USA

Abstract: Atomically thin crystals such as graphene, boron nitride and the transition metal dichalcogenides continue to attract enormous interest. Encompassing a wide range of properties, including single-particle, topological and correlated phenomenon, these 2D materials represent a rich class of materials in which to explore both novel physical phenomenon and new technological pursuits. By integrating these materials with one another, an exciting new opportunity has emerged in which entirely new layered heterostuctures can be fabricated with emergent properties beyond those of the constituent materials. In this talk I will discuss some of our recent efforts where, by tuning the geometry of these heterostructures at the nanoscale, we are able to realize yet a new level of control over their electronic properties. In particular I will discuss the significant role played by the rotational alignment between adjacent layers and the approach we are taking towards manipulating this degree of freedom to dynamically tune device properties in ways that are not possible with conventional materials