Single-Electron Transport in Ropes of Carbon Nanotubes

Abstract

The electrical properties of individual bundles, or "ropes," of single-walled carbon nanotubes have been measured. Below about 10 kelvin, the low-bias conductance was suppressed for voltages less than a few millivolts. In addition, dramatic peaks were observed in the conductance as a function of a gate voltage that modulated the number of electrons in the rope. These results are interpreted in terms of single-electron charging and resonant tunneling through the quantized energy levels of the nanotubes composing the rope.

Chirality-controlled synthesis of single-wall carbon nanotubes using vapour-phase epitaxy

“…Figure 3a,b show predominant peaks at 265 cm À 1 , which correspond to the RBM of (7, 6) nanotubes, indicating that the chirality is indeed preserved in the cloned nanotubes. The minority peaks at 300 and 307 cm À 1 can be attributed to the (8,3) and (9, 1) impurities. We have also performed Raman mapping along a specific nanotube as shown in Fig.…”

“…S ingle-wall carbon nanotubes (SWCNTs) possess superior electrical and optical properties, and hold great promise for electronic and biomedical applications [1][2][3][4][5][6][7][8][9][10] . As the electronic property of an SWCNT strongly depends on its chirality, the lack of synthetic control in chirality has long been recognized as a fundamental impediment in the science and application of SWCNTs.…”

Correlated transport and non-Fermi-liquid behavior in single-wall carbon nanotubes

“…(2.14) in powers of d implies that the correction δV p (x) = 0. Since V 0 (x) treats both sublattices on equal footing, the resulting αFS interaction couples only the total electron densities, 15) where the 1D density is defined as…”

Subgap spectroscopy of thermally excited quasiparticles in a Nb-contacted carbon nanotube quantum dot

“…[1][2][3] By using superconducting metals as electrodes, a significant increase of spectroscopic resolution due to the sharp peaks at the gap edges in the BCS density of states can be achieved. 4 Depending on the coupling strength between the carbon nanotube and its leads, the nanotube can act as a Josephson weak link, and proximity-induced supercurrent can flow through the quantum dot.…”