Superconductivity in carbon nanotubes coupled to transition metal atoms

Metal-to-semiconductor transition in squashed armchair carbon nanotubes.

We investigate electronic transport properties of the squashed armchair carbon nanotubes, using tight-binding molecular dynamics and the Green's function method. We demonstrate a metal-to-semiconductor transition while squashing the nanotubes and a general mechanism for such a transition. It is the distinction of the two sublattices in the nanotube that opens an energy gap near the Fermi energy...

Encapsulation of transition metal atoms into carbon nanotubes: a supramolecular approach.

A functionalised fullerene incorporating a double-chelating group binds transition metal cations and acts as an effective vehicle for delivering metals into carbon nanotubes.

SUPPORTING INFORMATION Nitrogen Doped Carbon Nanotubes Functionalized by Transition Metal Atoms: A Density-Functional Study

Various bonding configurations of transition-metal atoms on carbon nanotubes: Their effect on contact resistance

Our investigations reveal that the bonding of the transition-metal atoms on a single-wall carbon nanotube ~SWCN! depends on the detailed contact conditions. On the basis of our results, we suggest that the early 3-d elements ~Sc, Ti, and V! can be expected to be good candidates for making metal–SWCN contacts of low resistance, while contacts employing the late 3-d elements ~Fe, Co, and Ni! and ...

Metal-Insulator Transition in Doped Single-Wall Carbon Nanotubes

We find strong evidence for a metal-insulator sMId transition in macroscopic single wall carbon nanotube sSWNTd conductors. This is revealed by systematic measurements of resistivity and transverse magnetoresistance sMRd in the ranges 1.9–300 K and 0–9 Tesla, as a function of p-type redox doping. Strongly H2SO4-doped samples exhibit small negative MR, and the resistivity is low and only weakly ...