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APS » Journals » Phys. Rev. Lett. » Volume 86 » Issue 14
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Phys. Rev. Lett. 86, 3088–3091 (2001)

Evolution of Two-Dimensional Wormlike Nanoclusters on Metal Surfaces

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Woei Wu Pai1,2,3 and John F. Wendelken1
1Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
2Department of Physics, University of Tennessee, Knoxville, Tennessee 37996
3Center for Condensed Matter Sciences, National Taiwan University, Taiwan 106

C. R. Stoldt4, P. A. Thiel4,6, J. W. Evans5,6, and Da-Jiang Liu6
4Department of Chemistry, Iowa State University, Ames, Iowa 50011
5Department of Mathematics, Iowa State University, Ames, Iowa 50011
6Ames Laboratory, Iowa State University, Ames, Iowa 50011

Received 21 November 2000; published in the issue dated 2 April 2001

A pinch-off phenomenon is discovered in the evolution of 2D wormlike nanoclusters formed in homoepitaxial adlayers. This feature is shown to distinguish mass transport via periphery diffusion from other mechanisms. Continuum modeling of such evolution accurately describes experimental observations, particularly if one incorporates the anisotropy in step-edge line tension.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3088
DOI:
10.1103/PhysRevLett.86.3088
PACS:
68.35.Fx, 68.35.Bs, 68.35.Md
 
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