Nano Carbon: From ballistic transistors to atomic drumheads
14 May 2008 | Online Presentations | Contributor(s): Paul L. McEuen
Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists. Graphene, a single layer of graphite, can serve as an impenetrable membrane a single atom thick. Rolled up into a nanometer-diameter cylinder--a carbon nanotube --it makes great 1D transistors, quantum dots, and nanoguitar strings. In this talk, I will review some of our group's recent results on these remarkable materials, including ultrafast measurements of ballistic transport in nanotubes, studies of topological spin-orbit effects that arise from a nanotubes' cylindrical geometry, and the properties of a graphene balloon that is one atom thick.