title: Direct measurement of chiral structure and transport in single- and multi-walled carbon nanotubes.
abstract: Electrical devices based on suspended multi-wall carbon nanotubes were constructed and studied. The chiral structure of each shell in a particular nanotube was determined using nanobeam electron diffraction in a transmission electron microscope. The transport properties of the carbon nanotube were also measured. The nanotube device length was short enough that the transport was nearly ballistic, and multiple subbands contributed to the conductance. Thermal excitation of carriers significantly affected nanotube resistance at room temperature.
authors.affiliation: Dept Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
authors.forename: Taoran
authors.initials: T
authors.lastname: Cui
authors.forename: Letian
authors.initials: L
authors.lastname: Lin
authors.forename: Lu-Chang
authors.initials: LC
authors.lastname: Qin
authors.forename: Sean
authors.initials: S
authors.lastname: Washburn