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arXiv · 0904.3676

Carbon nanoelectronics: unzipping tubes into graphene ribbons

H. Santos·L. Chico·L. Brey
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Abstract

We report on the transport properties of novel carbon nanostructures made of partially unzipped carbon nanotubes, which can be regarded as a seamless junction of a tube and a nanoribbon. We find that graphene nanoribbons act at certain energy ranges as a perfect valley filters for carbon nanotubes, with the maximum possible conductance. Our results show that a partially unzipped carbon nanotube is a magnetoresistive device, with a very large value of the magnetoresistance. We explore the properties of several structures combining nanotubes and graphene nanoribbons, demonstrating that they behave as optimal contacts for each other, and opening a new route for the design of mixed graphene/nanotube devices.

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H. Santos, L. Chico, L. Brey. 2009-04-23. Carbon nanoelectronics: unzipping tubes into graphene ribbons. https://doi.org/10.1103/physrevlett.103.086801

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