Subnanometer motion of cargoes driven by thermal gradients along carbon nanotubes

Science

Volumn 320, Issue 5877, 2008, Pages 775-778

  Barreiro, Amelia ^a   Rurali, Riccardo ^a   Hernández, Eduardo R ^b   Moser, Joel ^a   Pichler, Thomas ^c   Forró, László ^d   Bachtold, Adrian ^a  

^a UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

^b INSTITUT DE CIÈNCIA DE MATERIALS DE BARCELONA ICMAB CSIC   (Spain)

^c UNIVERSITY OF VIENNA   (Austria)

^d EPFL   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON NANOTUBE; MULTI WALLED NANOTUBE;

CARBON; CARGO; ELECTROCHEMICAL METHOD; TEMPERATURE GRADIENT;

ARTICLE; ATOM; ATOMIC FORCE MICROSCOPY; CHIRALITY; ELECTRICITY; ELECTRON BEAM; ENERGY; MOTION; NANOANALYSIS; NANOELECTROMECHANICAL SYSTEM; PRIORITY JOURNAL;

EID: 46649092770     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1155559     Document Type: Article

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28. We do not observe any change of the electron resistance when comparing samples with and without gold cargoes. As a result, we do not expect a substantial modification of the spatial temperature profile in these two configurations. A direct consequence of this temperature profile is that the speed of the cargo is not constant along the nanotube. It is highest near the midpoint of the tube and lowest near the contacts (fig. S2).
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32. We thank J. Llobet, G. Rius, and X. Borrisé for valuable help with the experiments, as well as P. Ordejon and M. Monthioux for discussions. Financial support from a European Young Investigator grant, the European Union-funded project FP6-IST-021285-2, the grants FIS2006-12117-C04 and TEC2006-13731-C02-01 from the Ministerio de Educación y Ciencia, a Ramón y Cajal Fellowship, and the grant 2005SGR683 from Agència de Gestió d'Ajuts Universitaris i de Recerca is acknowledged. The work in Lausanne was supported by the Swiss NSF and its National Centres of Competence in Research "Nanoscale Science."