Carbon nanotube-clamped metal atomic chain

Carbon nanotube-clamped metal atomic chain.

Metal atomic chain (MAC) is an ultimate one-dimensional structure with unique physical properties, such as quantized conductance, colossal magnetic anisotropy, and quantized magnetoresistance. Therefore, MACs show great potential as possible components of nanoscale electronic and spintronic devices. However, MACs are usually suspended between two macroscale metallic electrodes; hence obvious te...

Carbon Nanotube Clamped Metal Atomic Chain: Fabrication, Structure and Property

High Strength Metal-Carbon Nanotube Composites

Uniform dispersion of pre-synthesized nanotubes in metal matrices is difficult to achieve, and there is substantial damage to the nanotubes during subsequent composite fabrication. The demonstration of an in-situ process involving chemical vapor deposition of single-wall and multi-wall carbon nanotubes into iron matrices without the concomitant formation of iron carbides is reported here. It wa...

Photocurrent Amplification at Carbon Nanotube-Metal Contacts

ply a similar model. When using an electron beam instead of an ion beam, the CNTs could not be aligned, which indicates that the mass of the charge carrier is possibly involved in the process. The CNT aligned by this method maintains its elasticity, as is observed in the bending test with a nanomanipulator installed in the scanning electron microscope. Furthermore, we could obtain stable SFM im...

Evaluation of the nanotube intrinsic resistance across the tip-carbon nanotube-metal substrate junction by Atomic Force Microscopy

Using an atomic force microscope (AFM) at a controlled contact force, we report the electrical signal response of multi-walled carbon nanotubes (MWCNTs) disposed on a golden thin film. In this investigation, we highlight first the theoretical calculation of the contact resistance between two types of conductive tips (metal-coated and doped diamond-coated), individual MWCNTs and golden substrate...