Issue |
EPL
Volume 101, Number 6, March 2013
|
|
---|---|---|
Article Number | 66002 | |
Number of page(s) | 5 | |
Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
DOI | https://doi.org/10.1209/0295-5075/101/66002 | |
Published online | 03 April 2013 |
Modeling of nanoparticle manipulation by AFM: Rolling vs. sliding regimes
1 Universität Bielefeld, Fakultät für Physik - 33615 Bielefeld, Germany, EU
2 ICSI-CNRS - 15 Rue Jean Starcky, 68057 Mulhouse, France, EU
(a) mykhaylo@physik.uni-bielefeld.de
Received: 16 January 2013
Accepted: 5 March 2013
We theoretically model the manipulation of a nanorod by an atomic force microscope (AFM), aiming at the determination of its sliding or rolling regimes of motion. It is found that, for contact-mode manipulation, rolling requires simultaneous fulfilment of several conditions. Namely, the corrugation of the substrate potential must be sufficiently high to overcome the effects of the particle adhesion to the substrate and to the tip. On the other hand, the corrugation of the tip potential should be relatively low to allow the particle corners to slide against the tip surface as the particle rotates. Furthermore, only sliding is possible if the tip opening angle or its radius of curvature exceed some critical values determined by the geometry of the particle cross-section.
PACS: 68.65.-k – Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties / 46.55.+d – Tribology and mechanical contacts / 07.79.Sp – Friction force microscopes
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.