Unconventional magnetotransport phenomena in individual carbon nanotubes - Archive ouverte HAL Access content directly
Conference Papers Year : 2006

Unconventional magnetotransport phenomena in individual carbon nanotubes

Abstract

We investigate the quantum transport in different individual carbon nanotubes in the light of magneto-transport experiments in intense (60T pulsed)magnetic field. Large magnetic fields are required to probe field dependent gap modulation and quantum interference effects along the circumference of the tube. Such experiments along with a control of the electrostatic doping of the tube by a back-gate voltage constitute an unique tool to explore the exceptional electronic properties of this material. We bring evidence that the field dependence of the conductivity is a fingerprint of the electronic conduction modes and their interplay with the band structure (helicity), the static disorder and the location of the Fermi level of the tube. We infer the characteristic lengths of the electronic transport (the electronic mean free path and the phase coherence length) which are differently modified by the Fermi level location, depending on the disorder.
Fichier principal
Vignette du fichier
Lassagne_4878.pdf (344.07 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-04044565 , version 1 (24-03-2023)

Identifiers

  • HAL Id : hal-04044565 , version 1
  • OATAO : 4878

Cite

Benjamin Lassagne, Bertrand Raquet, Jean-Marc Broto, François Triozon, Stephan Roche, et al.. Unconventional magnetotransport phenomena in individual carbon nanotubes. 12th International Conference on Narrow Gap Semiconductors (NGS 12), Jul 2005, Toulouse, France. pp.267-272. ⟨hal-04044565⟩
69 View
10 Download

Share

Gmail Facebook X LinkedIn More