Équipe de Recherche en Physique de l'Information Quantique


author = {Roche, P.-E., Kociak, M., Ferrier, M., Guéron, S., Kasumov, A., Reulet, B., Bouchiat, H.},
title = {Shot noise in carbon nanotubes},
journal = {Proceedings of SPIE, Noise and Information in Nanoelectronics, sensors and standards},
year = {2003},
volume = {5115},
pages = {104-115},
note = {cited By (since 1996) 4},
url = {http://www.scopus.com/inward/record.url?eid = 2-s2.0-0041322588&partnerID = 40&md5 = 4d3d195e025815f9e71488cce8d35967},
affiliation = {Laboratoire de Physique des Solides, Associé au CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay, France; Ctr. de Rech. les Tres Bassses Temp., CNRS, 25 av. des Martyrs 38042, Grenoble Cedex 9, France; SPEC, Orme des Merisiers, CEA-Saclay, 91190 Gif sur Yvette, France; Inst. of Microelectronics Technology, High Purity Materials, Russian Academy of Sciences, Chernogolovka 142432 Moscow Region, Russian Federation; Institute of Physical, Chemical Research RIKEN, Semiconductors Laboratory, Hirosawa 2-1, Wako, Saitama, 351-0198, Japan; Dept. of Applied Physics and Physics, Yale University, New Haven, CT 06520-8284, United States},
abstract = {Carbon nanotubes may constitute the ultimate conducting wires for nano-electronics, with their diameters as small as a few tens of atoms and their length of order one micrometer. Because of the particular band structure of graphite, nanotubes have at most two conducting channels, which makes them a one dimensional conductor with very exotic properties. Experimental investigations have indeed shown non conventional features, such as non-ohmic behavior, superconductivity and an ability to carry a huge current density. We have carried out shot noise measurements on nanotubes which are suspended between metallic electrodes. One consequence of the suspended geometry is a very low 1/f noise, thereby enabling the extraction of shot noise. In bundles of nanotubes, we find a reduction of shot noise by more than a factor 100 compared to the full noise 2.e.I expected for uncorrelated electrons. A low noise is also found in an isolated single wall nanotube. In a simple non-interacting-electron picture, such a low shot noise implies that the electrical conduction through a bundle of nanotubes is concentrated in a few ballistic tubes. Another interpretation however would be that a substantial fraction of the tubes conduct with a strong reduction of the effective charge (more than a factor 50) due to electron-electron interaction.},
author_keywords = {Johnson-Nyquist noise; Luttinger liquid; Mesoscopic transport; Shot noise; Single wall nanotube},
document_type = {Conference Paper},
source = {Scopus}}