Phys. Rev. B 79, 121402(R) (2009) [4 pages]

Dynamics of Ag clusters on complex surfaces: Molecular dynamics simulations

Abstract

References

Citing Articles (2)

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S. Alkis¹, J. L. Krause¹, J. N. Fry², and H.-P. Cheng^3,*
¹Department of Chemistry and Quantum Theory Project, University of Florida, Gainesville, Florida 32611, USA
²Department of Physics, University of Florida, Gainesville, Florida 32611, USA
³Department of Physics and Quantum Theory Project, University of Florida, Gainesville, Florida 32611, USA

Received 20 August 2008; revised 16 November 2008; published 20 March 2009

We study the diffusion of silver nanoparticles on self-assembled monolayers (SAMs). Silver clusters Ag_n of sizes n=55, 147, and 1289 were evolved in contact with an alkanethiol (12 carbon, dodecanethiol) SAM deposited on a gold (111) surface. Analysis based on classical molecular dynamics simulations reveals that these systems exhibit a rich variety of behaviors, from superdiffusive for the lightest cluster to pinned for the heaviest, evolution self-similar in lengths and times for the lightest cluster but with characteristic time scales and directional anisotropies emerging for the heavier clusters.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.79.121402

DOI:

10.1103/PhysRevB.79.121402

PACS:

68.35.Fx, 61.46.−w, 36.40.Sx

^*Corresponding author; cheng@qtp.ufl.edu

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Phys. Rev. B 79, 121402(R) (2009) [4 pages]

Dynamics of Ag clusters on complex surfaces: Molecular dynamics simulations