Document Detail


Giant wave-drag enhancement of friction in sliding carbon nanotubes.
MedLine Citation:
PMID:  17155644     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Molecular dynamics simulations of coaxial carbon nanotubes in relative sliding motion reveal a striking enhancement of friction when phonons whose group velocity is close to the sliding velocity of the nanotubes are strongly excited. The effect is analogous to the dramatic increase in air drag experienced by aircraft flying close to the speed of sound but differs in that it can occur in multiple velocity ranges with varying magnitude, depending on the atomic level structures of the nanotubes. The phenomenon is a general one that may occur in other nanoscale mechanical systems.
Authors:
Paul Tangney; Marvin L Cohen; Steven G Louie
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Publication Detail:
Type:  Journal Article     Date:  2006-11-10
Journal Detail:
Title:  Physical review letters     Volume:  97     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2006-12-12     Completed Date:  2007-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  195901     Citation Subset:  -    
Affiliation:
Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
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