Intershell resistance in multiwall carbon nanotubes: A Coulomb drag study

Intershell resistance in multiwall carbon nanotubes: A Coulomb drag study

Transport and Coulomb drag for two interacting carbon nanotubes

We study nonlinear transport for two coupled one-dimensional quantum wires or carbon nan-otubes described by Luttinger liquid theory. Transport properties are shown to crucially depend on the contact length Lc. For a special interaction strength, the problem can be solved analytically for arbitrary Lc. For point-like contacts and strong interactions, a qualitatively different picture compared t...

Multichannel ballistic transport in multiwall carbon nanotubes.

The electric transport properties of an individual vertical multiwall carbon nanotube (MWCNT) were studied in situ at room temperature in a scanning electron microscope chamber. It was found that the single MWCNT has a large current-carrying capacity, and the maximum current can reach 7.27 mA. At the same time, a very low resistance of about 34.4 ohms and a high conductance of about (460-490)G0...

Multiwall carbon nanotubes as quantum dots.

We have measured the differential conductance of individual multiwall carbon nanotubes. Coulomb blockade and energy level quantization are observed. The electron levels are nearly fourfold degenerate (including spin) and their evolution in magnetic field (Zeeman splitting) agrees with a g factor of 2. In zero magnetic field the sequential filling of states evolves with spin S according to S = 0...

Tomonaga-Luttinger liquid and Coulomb blockade in multiwall carbon nanotubes under pressure.

We report that the conductance of macroscopic multiwall nanotube (MWNT) bundles under pressure shows power laws in temperature and voltage, as corresponding to a network of bulk-bulk connected Tomonaga-Luttinger liquids (LLs). Contrary to individual MWNTs, where the observed power laws are attributed to Coulomb blockade, the measured ratio for the end and bulk obtained exponents, approximately ...