title: Electrical conductance in a single carbon nanofiber.
abstract: A microwave-plasma enhanced chemical-vapor-deposition (MPECVD) method was used to grow a solo multi-wall carbon nanofiber, which plays as a bridge across nickel electrodes that were separated by the photolithographic process. The length and diameter of carbon nanofiber are 3 microm and 100 nm, respectively. The single wire across the electrodes reveals a step current-voltage characteristic measured at high currents and low temperatures while shows a continuous behavior for multiple nanofibers. This stepwise conductance can be successfully dwelled by the quasi one-dimensional transport theory of conductors without considering the electron-phonon interaction at low temperatures and is expected to play a crucial role to determine the electrical behavior of these nanodevices.
authors.affiliation: Department of Physics, Institute of National Tsing Hua University, Hsin Chu, Taiwan.
authors.forename: Lun Wei
authors.initials: LW
authors.lastname: Chang
authors.forename: Juh Tzeng
authors.initials: JT
authors.lastname: Lue
mesh_terms: D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D008422:Materials Testing; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011789:Quantum Theory; D013499:Surface Properties
chemical_list: D037742:Nanotubes, Carbon