Carbon Nanotube Quantum Resistors | RDL Research Database

Abstract

The conductance of multiwalled carbon nanotubes (MWNTs) was found to be quantized. The experimental method involved measuring the conductance of nanotubes by replacing the tip of a scanning probe microscope with a nanotube fiber, which could be lowered into a liquid metal to establish a gentle electrical contact with a nanotube at the tip of the fiber. The conductance of arc-produced MWNTs is one unit of the conductance quantum G 0 = 2 e 2 / h = (12.9 kilohms) –1 . The nanotubes conduct current ballistically and do not dissipate heat. The nanotubes, which are typically 15 nanometers wide and 4 micrometers long, are several orders of magnitude greater in size and stability than other typical room-temperature quantum conductors. Extremely high stable current densities, J > 10 7 amperes per square centimeter, have been attained.

Keywords

Carbon nanotubeNanotubeMaterials scienceConductanceNanotechnologyNanometreFiberBallistic conduction in single-walled carbon nanotubesElectrical resistivity and conductivityResistorOptical properties of carbon nanotubesComposite materialCondensed matter physicsPhysicsVoltage

Affiliated Institutions

Georgia Institute of Technology US

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Publication Info

Year: 1998
Type: article
Volume: 280
Issue: 5370
Pages: 1744-1746
Citations: 2071
Access: Closed

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APA Style

                            
                                
                                    Stefan Frank, 
                                
                                    P. Poncharal, 
                                
                                    Zhong Lin Wang
                                
                                et al.
                            
                            (1998). 
                            Carbon Nanotube Quantum Resistors. 
                            Science
                            , 280
                            (5370)
                            , 1744-1746.
                            https://doi.org/10.1126/science.280.5370.1744
                        

Identifiers

DOI: 10.1126/science.280.5370.1744