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Diffusion Mechanism for Self Assembly on Inhomogeneously Strained Surfaces

Published online by Cambridge University Press:  10 February 2011

M.I. Larsson,
R.F. Sabiryanov,
K. Cho and
B.M. Clemens
M.I. Larsson
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CAon leave from Department of Physics, Karlstad University, Sweden
R.F. Sabiryanov
Affiliation:
Department of Physics, University of Nebraska at Omaha, Omaha, NE
K. Cho
Affiliation:
Department of Mechanical Engineering, Stanford University, Stanford, CA
B.M. Clemens
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA
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Abstract

Growth of nanostructures with controlled shape, on inhomogeneously strained surfaces, is investigated by means of kinetic Monte Carlo (KMC) simulations. We propose a method to assemble self organized sub-lithographic nanostructures. The method is based on a strain-assisted mechanism for adatom surface diffusion and nucleation. For an inhomogeneous surface strain field there is normally a driving force toward the most tensile strained areas. It is shown by means of KMC simulations, that almost straight and continuous Ag nanowires can be produced on the Pt(111) surface if the growth is followed by high-temperature annealing. We suggest also how the method can be utilized as the first step of a process to reduce the circuit line width.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 775: Symposium P – Self-Assembled Nanostructured Materials , 2003, P9.55
Copyright
Copyright © Materials Research Society 2003

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