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Microwave Characterisation of Carbon Nanotube Powders

Porch, Adrian, Odili, Daniel I. and Childs, Peter A. 2012. Microwave Characterisation of Carbon Nanotube Powders. Nanoscale Research Letters 7 , 429. 10.1186/1556-276X-7-429

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We have used a 3 GHz microwave host cavity to study the remarkable electronic properties of metallic, single-walled carbon nanotubes. Powder samples are placed in its magnetic field antinode, which induces microwave currents without the need for electrical contacts. Samples are shown to screen effectively the microwave magnetic field, implying an extremely low value of sheet resistance (< 10 micrometers) within the graphene sheets making up the curved nanotube walls. Associated microwave losses are large due to the large surface area, but also point to a similar, very small value of sheet resistance due to the inherent ballistic electron transport.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher: Springer
ISSN: 1556-276X
Last Modified: 04 Jun 2017 04:19

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