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Transition from static to kinetic friction of metallic nanoparticles
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10.1063/1.3193551
/content/aip/journal/apl/95/5/10.1063/1.3193551
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/5/10.1063/1.3193551
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Figures

Image of FIG. 1.
FIG. 1.

Nanoparticle manipulation using the tip-on-top approach. (a) Tip is positioned on top of a particle. (b) Cantilever is moving on top of a nanoparticle (low normal force). (c) Tip is moving together with the particle (high normal force). (d) Before and after topography images of an Sb nanoparticle manipulated under ambient conditions using the tip-on-top mode. Translation distance is .

Image of FIG. 2.
FIG. 2.

(a) Nanoparticle where the typical scan area is indicated. (b) Friction loops (top) and topography (bottom) just before (left hand panels) and after (right hand panels) particle sliding was initiated. (c) Plots of the effective friction force and cantilever normal force as a function of the time, while continuously scanning the AFM tip on top of the nanoparticle with a scan range of 20 nm. The sudden drop at indicates the transition to particle sliding.

Image of FIG. 3.
FIG. 3.

(a) Friction force vs normal force during tip-on-top manipulation of the Sb particle from Fig. 2. Four regimes are shown: (1) At low , the tip is moving on top of the particle as indicated by the typical load dependent increase of . (2) A sudden drop of indicates the transition to particle sliding. The maximum value of is identified as the static friction . (3) Further increase of results in a constant friction force . (4) Particle sliding continues also below the initial threshold normal force. (b) Static and kinetic friction for one nanoparticle in four subsequent runs. (c) Static and kinetic friction and their ratio (inset) determined for five different Sb nanoparticles with contact areas 65 000, 68 000, 74 000, 74 000, and for particles 1–5, respectively.

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/content/aip/journal/apl/95/5/10.1063/1.3193551
2009-08-04
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transition from static to kinetic friction of metallic nanoparticles
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/5/10.1063/1.3193551
10.1063/1.3193551
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