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APS » Journals » Phys. Rev. Lett. » Volume 97 » Issue 18
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Phys. Rev. Lett. 97, 186103 (2006) [4 pages]

Reentrant Adhesion Behavior in Nanocluster Deposition

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A. Awasthi and S. C. Hendy
MacDiarmid Institute for Advanced Materials and Nanotechnology, Industrial Research Ltd., Lower Hutt 5040, New Zealand

P. Zoontjens
MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand

S. A. Brown
MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Physics and Astronomy, University of Canterbury, Christchurch 8140, New Zealand

Received 14 June 2006; published 1 November 2006

We simulate the collision of atomic clusters with a weakly attractive surface using molecular dynamics in a regime between soft landing and fragmentation, where the cluster undergoes large deformation but remains intact. As a function of incident kinetic energy, we find a transition from adhesion to reflection at low kinetic energies. We also identify a second adhesive regime at intermediate kinetic energies, where strong deformation of the cluster leads to an increase in contact area and adhesive energy.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.186103
DOI:
10.1103/PhysRevLett.97.186103
PACS:
68.35.Np, 61.46.Df, 62.20.Fe, 68.49.Fg
 
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