Nano Archive

Defect-related hysteresis in nanotube-based nano-electromechanical systems

Tsetseris, Leonidas and Pantelides, Sokrates T (2011) Defect-related hysteresis in nanotube-based nano-electromechanical systems. Nanoscale Research Letters, 6 (1). pp. 1-7.

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/21711767

Abstract

The electronic properties of multi-walled carbon nanotubes (MWCNTs) depend on the positions of their walls with respect to neighboring shells. This fact can enable several applications of MWCNTs as nano-electromechanical systems (NEMS). In this article, we report the findings of a first-principles study on the stability and dynamics of point defects in double-walled carbon nanotubes (DWCNTs) and their role in the response of the host systems under inter-tube displacement. Key defect-related effects, namely, sudden energy changes and hysteresis, are identified, and their relevance to a host of MWCNT-based NEMS is highlighted. The results also demonstrate the dependence of these effects on defect clustering and chirality of DWCNT shells.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10936
Deposited By:JNCASR
Deposited On:14 Sep 2011 05:41
Last Modified:14 Sep 2011 05:41

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