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Type: 
Journal
Description: 
The electron microscope has been a powerful, highly versatile workhorse in the fields of material and surface science, micro and nanotechnology, biology and geology, for nearly 80 years. The advent of two-dimensional materials opens new possibilities for realizing an analogy to electron microscopy in the solid state. Here we provide a perspective view on how a two-dimensional (2D) Dirac fermion-based microscope can be realistically implemented and operated, using graphene as a vacuum chamber for ballistic electrons. We use semiclassical simulations to propose concrete architectures and design rules of 2D electron guns, deflectors, tunable lenses and various detectors. The simulations show how simple objects can be imaged with well-controlled and collimated in-plane beams consisting of relativistic charge carriers. Finally, we discuss the potential of such microscopes for investigating edges, terminations …
Publisher: 
Nature Publishing Group
Publication date: 
9 Jun 2017
Authors: 

Peter Bøggild, José M Caridad, Christoph Stampfer, Gaetano Calogero, Nick Rübner Papior, Mads Brandbyge

Biblio References: 
Volume: 8 Issue: 1 Pages: 1-12
Origin: 
Nature communications